perl and openvms · 2008-06-19 · perl and openvms bernd ulmann [email protected] ... a variable,...
TRANSCRIPT
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Per
lan
dO
pen
VM
S
Ber
nd
Ulm
ann
IT-S
ympos
ium
2008
4th
June
–5t
hJu
ne
2008
Fra
nkf
urt
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Out
line
1In
troduct
ion
2V
MS
spec
ialit
ies
3Exa
mple
s
4Con
clusion
and
conta
ct
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e1
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Ove
rvie
w
Ove
rvie
w
On
the
follo
win
gslid
esItr
yto
give
anim
pres
sion
ofth
epow
erof
Per
lin
gener
alan
din
spec
ialin
anO
pen
VM
Sen
viro
nm
ent.
The
exam
ple
swer
ech
osen
from
my
own
dai
lywor
kon
ala
rge
Open
VM
Ssy
stem
and
range
from
sim
ple
code
snip
pet
s,pr
ogra
ms
for
one
tim
eusa
geto
larg
erPer
lpr
ogra
ms
runnin
gas
bat
chjo
bs
and
per
form
ing
cruci
alta
sks
like
fetc
hin
gm
ailfrom
aPO
P-s
erve
ran
dth
elik
e.
Per
lis
no
repla
cem
ent
for
DCL
but
itm
akes
life
much
mor
eea
sier
when
itco
mes
tofile
par
sing
and
modifyi
ng,
sock
etco
mm
unic
atio
n,dat
abas
eac
cess
eset
c.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Som
efa
cts
abou
tPer
l
The
follo
win
gslid
esco
nta
inso
me
(ver
y)bas
icfa
cts
abou
tPer
lw
hic
har
ein
no
way
com
ple
tebut
may
give
anim
pres
sion
ofth
epr
ogra
mm
ing
langu
age
for
thos
ew
ho
hav
enev
erse
enan
yac
tual
Per
lco
de.
For
Per
lpr
ogra
mm
ers
ther
eex
ists
one
mai
nre
sourc
eof
info
rmat
ion
and
enlig
hte
nm
ent
–th
eso
calle
dca
mel
book
,”P
rogr
amm
ing
Per
l”,publis
hed
byO
’Rei
lly.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e2
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Wha
tis
Per
l?
Per
lwas
dev
elop
edby
Lar
ryW
all.
The
nam
eis
not
anac
rynom
but
are
tron
ym.
Per
lis
am
oder
nin
terp
rete
rla
ngu
age
(in
fact
the
inte
rpre
ter
does
ago
od
job
prec
ompili
ng
the
code
soPer
lpr
ogra
ms
tend
toru
nsu
rprisingl
yfa
st).
Per
lru
ns
onm
ore
arch
itec
ture
san
dop
erat
ing
syst
ems
than
mos
tot
her
langu
ages
(incl
udin
gJa
va).
Per
lco
de
look
sst
range
for
the
nov
ice.
Per
lis
incr
edib
lypow
erfu
lan
dco
nci
se.
Much
ofth
epow
erof
Per
llie
sin
its
module
s.
Per
l’s
philo
sophy
is”T
her
eis
mor
eth
anon
eway
todo
it.”
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Var
iabl
es Per
ldoes
not
care
abou
tth
ety
pe
ofa
variab
le,it
isty
pe
free
.
Inst
ead,Per
lca
res
abou
tth
est
ruct
ure
ofa
variab
le–
ines
sence
ther
ear
eth
ree
bas
icst
ruct
ure
s:
Sca
lars
:A
scal
arva
riab
leca
nhol
da
singl
eva
lue
ata
tim
ean
dth
eva
riab
lenam
eis
alway
spr
ecee
ded
bya$
like
inmy
$pi
=3.14159265;
Arr
ays:
An
arra
yis
anin
dex
edlis
tco
nsist
ing
ofsc
alar
sas
its
elem
ents
.T
he
nam
eof
anar
ray
ispr
ecee
ded
bya@
like
inmy
@entries;
Has
hes
:T
hes
ear
esim
ilar
toar
rays
but
use
strings
inst
ead
ofnum
eric
alin
dic
es.
Thei
rnam
esar
epr
ecee
ded
bya%
like
inmy
%data;
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e3
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Var
iabl
es
Som
eex
ample
sof
Var
iable
s
my
$pi
=’threepointonefour’;
my
@array;
$array[0]
=’Something’;
$array[1]
=’Something
else’;
my
%data;
$data{’name’}=
’Bernd’;
$data{’occupation’}=
’VAX
enthusiast’;
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Con
trol
stru
ctur
es
Per
lsu
ppor
tsal
lof
the
com
mon
contr
olst
ruct
ure
slik
eif
...else,while,do
...while,for
etc.
Eve
rysu
chst
atem
ent
requires
ablo
cksu
rrou
nded
bybr
aces
–th
ese
can
not
be
left
out
like
inC
ifon
lya
singl
est
atem
ent
isto
be
contr
olle
d.
Inth
issp
ecia
lca
seso
calle
dst
atem
ent
modifi
ers
may
be
use
d:
Som
eex
ample
sof
contr
olst
ruct
ure
s
if
(condition)
#traditional
if
{...
} statement
if
condition
#statement
modifier;
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e4
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Con
trol
stru
ctur
es
Som
eex
ample
sof
contr
olst
ruct
ure
s
for
(my
$i
=0;
$i
<10;
$i++)
"$i\n";
} for
my
$value
(@array)
"$value\n";
"$\n"
for
(@array);
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Reg
ular
expr
ession
s
Much
ofPer
l’s
pow
erst
ems
from
its
built
inre
gula
rex
pres
sion
par
ser.
Reg
ula
rex
pres
sion
ste
nd
tolo
oka
bit
like
line
noi
seso
Iw
illnot
give
are
ason
able
exam
ple
her
e–
you
will
see
som
ein
the
exam
ple
sbel
ow.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e5
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Modu
les
Anot
her
sourc
eof
Per
l’s
pow
eris
the
multitude
ofm
odule
sw
hic
har
eav
aila
ble
onCPA
N.
Reg
ardle
ssw
hat
your
initia
lpr
oble
mis,firs
thav
ea
look
for
am
odule
whic
hm
ight
be
hel
pfu
lfo
ryo
ur
task
.
Exa
mple
sfo
rth
epow
erof
module
sar
enum
erou
s–
inth
efo
llow
ing
slid
esa
prog
ram
tofe
tch
mai
lsfrom
aPO
P3-
serv
eris
des
crib
edw
hic
huse
sa
PO
P3-
module
for
exam
ple
.T
his
module
conta
ins
all
nec
essa
ryfu
nct
ional
ity
toco
nnec
tto
aPO
P3-
serv
eran
dge
tm
ails,
del
ete
mai
lset
c.W
ith
the
hel
pof
theNet::POP3-M
odule
thes
eta
sks
reduce
tosim
ple
calls
.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Do/
dono
t Do:
Be
open
for
the
Per
lway
toso
lve
prob
lem
s.Per
lpr
ogra
ms
tend
tobe
quite
shor
tan
dpow
erfu
l.Exp
ect
code
that
issign
ifica
ntly
shor
ter
than
equiv
alen
tco
de
inot
her
langu
ages
like
Cet
c.U
sest
atem
ents
likesplit,join,map,grep
inst
ead
ofunnec
essa
rylo
ops.
Use
regu
lar
expr
ession
sto
par
se,m
anip
ula
teor
split
strings
!B
est
rict
and
use
war
nin
gsal
lth
etim
e!G
etth
eCam
elB
ook
!
Do
not
:..
.pro
gram
inPer
llik
ein
Cet
c...
.use
arra
ysw
hen
you
can
use
has
hes
...
.loop
over
anar
ray
tofind
anel
emen
t!
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e6
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Res
ourc
es
The
centr
alre
pos
itor
yfo
rPer
lan
dth
eth
ousa
nds
ofm
odule
sav
aila
ble
is
http://www.cpan.org
This
isth
eCom
preh
ensive
Per
lA
rchiv
eN
etwor
k.
When
ever
you
nee
da
Per
lin
terp
rete
r,a
module
ordocu
men
tation
,hav
ea
look
atth
eCPA
Nweb
site
orse
arch
direc
tly
via
http://search.cpan.org
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Som
efa
cts
about
Per
l
Inst
allin
gPer
l
Bas
ical
lyth
ere
are
two
way
sto
get
aPer
lin
terp
rete
rup
and
runnin
gon
asy
stem
:
1You
can
use
apr
ecom
pile
dpac
kage
–fo
rO
pen
VM
Sth
ere
isa
HP
supplie
ddistr
ibution
kit,
for
other
pla
tfor
ms
ther
ear
enum
erou
ssu
chki
tsav
aila
ble
.
2G
etth
eso
urc
esan
dco
mpile
and
inst
allth
esy
stem
yours
elf.
Per
sonal
ly,Iwou
ldal
way
spr
efer
the
seco
nd
met
hod
since
Ilik
eto
know
what
isre
ally
runnin
gon
my
syst
eman
dso
met
imes
Iwan
tto
do
som
eth
ings
diff
eren
tly
com
par
edw
ith
apr
ecom
pile
din
stal
lation
kit.
(Com
pili
ng
aPer
lsy
stem
onan
Alp
ha
isfa
st,but
ona
VA
Xth
isca
nta
kese
vera
lhou
rs,be
prep
ared
!)
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e7
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
VM
Sm
odule
s
VM
Sm
odu
les
As
allof
you
know
,O
pen
VM
Sis
diff
eren
tfrom
(and
super
ior
to:-)
other
oper
atin
gsy
stem
sw
hic
hhas
tobe
take
nin
toac
count
when
por
ting
orw
riting
softwar
e.
Ther
ear
ea
lot
ofm
odule
sen
capsu
ling
Open
VM
Ssp
ecifi
cta
sks
like
inte
rfac
ing
the
mai
lsy
stem
and
the
like
aswel
las
ther
ear
em
odule
sw
hic
hta
kein
toac
count
that
ther
eis
ava
riet
yof
diff
eren
tway
sto
han
dle
file
and
direc
tory
nam
eset
c.
Inth
efo
llow
ing
ase
lect
ion
ofm
odule
sw
hic
hIfo
und
tobe
espec
ially
use
fulin
anO
pen
VM
Sen
viro
nm
ent
islis
ted:
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
VM
Sm
odule
s
Som
eus
eful
modu
les
for
Open
VM
Ssy
stem
s
VMS::Device
Inte
rfac
he
to$GETDVI
and
the
like.
VMS::Filespec
Con
vert
sbet
wee
nO
pen
VM
San
dU
NIX
file
spec
s.VMS::FlatFile
Use
has
hes
towor
kw
ith
index
file
s.VMS::ICC
Intr
acl
ust
erco
mm
unic
atio
nse
rvic
es.
VMS::Mail
Inte
rfac
eto
the
Open
VM
Sm
ailsy
stem
.VMS::Process
Man
age
Open
VM
Spr
oce
sses
.VMS::Queue
Wor
kw
ith
queu
esan
dth
eir
entr
ies.
VMS::Stdio
File
oper
atio
ns
like
bin
mode,
flush
,vm
sopen
etc.
VMS::System
Ret
riev
esy
stem
info
rmat
ion.
File::Basename
Sys
tem
indep
enden
top
erat
ions
onfile
nam
eset
c.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e8
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Exa
mple
s
Exa
mpl
es
The
follo
win
gslid
essh
owso
me
prac
tica
lex
ample
sof
using
Per
lin
apr
oduct
ive
Open
VM
Sen
viro
nm
ent.
Som
eex
ample
s,es
pec
ially
the
sim
ple
ron
es,ar
eac
com
pan
ied
with
thei
rso
urc
eco
de
whic
hm
ight
be
inte
rest
ing,
alth
ough
mor
eco
mple
xex
ample
sar
eon
lydes
crib
ed.
Ifyo
uar
ein
tere
sted
inth
eso
urc
eco
de
ofon
eof
thes
em
ore
com
ple
xex
ample
s,ple
ase
let
me
know
,Iw
illm
ake
itav
aila
ble
toyo
uby
mai
lupon
reques
t.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Pro
gram
sfo
ron
etim
eus
age
Man
yev
eryd
ayta
sks
require
that
syst
emad
min
istr
ator
sas
wel
las
prog
ram
mer
sper
form
som
eunex
pec
ted
task
slik
ecl
ever
pat
tern
mat
chin
g,par
sing
log
file
san
dth
elik
ew
hic
har
enot
read
ilyso
lved
with
stan
dar
dD
CL
tool
s.
Man
yof
thes
epr
oble
ms
can
be
solv
edon
the
fly
using
aco
uple
oflin
esof
Per
lco
de.
The
follo
win
gse
ctio
ns
show
som
ety
pic
alex
ample
sfrom
my
own
ever
yday
wor
kusing
Open
VM
S.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e9
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Per
las
aco
mm
and
line
tool
Per
lca
nbe
use
das
aco
mm
and
line
tool
like,
for
exam
ple
,awk
onU
NIX
syst
ems.
This
can
be
very
use
fulw
hen
you
hav
ea
puzz
ling
prob
lem
whic
hdoes
not
des
erve
are
alpr
ogra
mbut
nee
ds
acl
ever
dat
aco
nve
rsio
non
the
fly
orso
met
hin
glik
eth
at.
Sin
ceth
ere
are
ava
riet
yof
com
man
dlin
eop
tion
sfo
rPer
lw
hic
har
euse
fulin
this
conte
xt,on
lya
sim
ple
exam
ple
isgi
ven
inth
efo
llow
ing.
Mor
ein
form
atio
nab
out
this
topic
may
be
found
else
wher
elik
eth
eCam
elbook
etc.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Cha
ngin
ga
confi
gura
tion
file
Once
Iin
her
ited
aco
nfigu
ration
fileTRANSFER.INI
whic
hlo
oked
inpar
tslik
eth
is:
[logging]
log
=log/transfer.log
ticket
=log/ticket.log
[templates]
ticket
=templates/ticket.tpl
=templates/mail.tpl
Ofco
urs
eth
ese
pat
hnam
esar
enot
very
Open
VM
Slik
ean
dit
wou
ldhav
ebee
nquite
cum
ber
som
eto
edit
allof
them
(ther
ewas
alo
tof
thos
epat
hnam
es)
byhan
d.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e10
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Cha
ngin
ga
confi
gura
tion
file
One
could
write
asm
allPer
lpr
ogra
mre
adin
gth
efile
,per
form
ing
the
nec
essa
rych
ange
susing
regu
lar
expr
ession
san
dw
riting
the
resu
ltbac
kto
disk.
Sin
ceta
sks
like
thes
ear
eco
mm
onpla
ce,Per
lca
nbe
use
das
am
ighty
com
man
dlin
eto
olfo
rper
form
ing
inpla
ceed
itop
erat
ions
like
tran
sfor
min
gth
ese
pat
hnam
esin
toO
pen
VM
Sfile
nam
es:
Inpla
ceed
itin
g:
perl
-i
-pe
-"s/^(.*\s*)=(\s*)(.+)\/(.+)/$1=$2\[
\.$3\]$4/"
i-
transfer.ini
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Cha
ngin
ga
confi
gura
tion
file
Apply
ing
this
singl
elin
est
atem
ent
toth
eco
nfigu
ration
file
show
nab
ove,
the
resu
ltin
gfile
look
slik
eth
is:
[logging]
log
=[.log]transfer.log
ticket
=[.log]ticket.log
[templates]
ticket
=[.templates]ticket.tpl
=[.templates]mail.tpl
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e11
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Fin
ding
unre
solv
edbi
blio
grap
hyitem
s
When
writing
LATEX
-docu
men
tsin
cludin
ga
bib
liogr
aphy
withou
tusing
Bib
TeX
,th
ere
isso
me
risk
ofhav
ing
unci
ted
bib
liogr
aphy
entr
ies
inth
eso
urc
eco
de.
Abib
liogr
aphy
entr
yhas
the
form
\bibitem{zachary}%book
G.
Pascal
Zachary,
\emph{Endless
Frontier
--
Vannevar
Bush,
Engineer
of
the
American
Century},
The
MIT
Press,
1999
While
aci
tation
look
slik
e
cf.
\cite{zachary}[p.
142].
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Fin
ding
unre
solv
edbi
blio
grap
hyitem
s
Hav
ing
adocu
men
tof
mor
eth
an12
0000
lines
resu
ltin
gin
abou
t60
0pag
esof
text
with
mor
eth
an60
0bib
ligra
phy
entr
ies,
Inee
ded
away
tobe
sure
that
ever
yen
try
was
infa
ctci
ted
inth
ete
xt.
To
acco
mplis
hth
isIw
rote
the
follo
win
gsh
ort
Per
lpr
ogra
mw
hic
hre
ads
inth
eco
mple
teso
urc
eco
de
with
asingl
est
atem
ent
and
par
ses
this
for
allci
tation
sin
afirs
tru
nw
hic
hbuild
sa
has
hco
nta
inin
gal
lci
tation
s,fo
llowed
bya
seco
nd
run
look
ing
for
all
bib
liogr
aphy
entr
ies.
Entr
ies
withou
tco
rres
pon
din
gci
tation
will
be
prin
ted
tost
dou
t(it
turn
edou
tth
atm
ore
than
20en
trie
sin
the
text
wer
eunuse
d).
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e12
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Fin
din
gunci
ted
entr
ies
inLATEX
-sou
rce
usestrict;
usewarnings;
die"Usagebib.pl<filename.tex>\n"unless@ARGV+0;
my$data;
openmy$fh,’<’,$ARGV[0]or
die"Couldnotopen$ARGV[0]:
$!\n";
{local$/;
$data=<$fh>;
} close$fh;
my%cite;
$cite{$
}++for$data=∼
m/\\
cite\{
(.+?)\}
/g;
$cite{$
}orprint"$\n"for$data=∼
m/\\
bibitem\{
(.+?)\}
/g;
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Par
sing
alo
gfile
Som
ewee
ksag
oIhad
topar
sea
log
file
with
entr
ies
like
show
nin
the
follo
win
gfo
rso
me
tim
esta
mps
toca
lcula
tean
aver
age
tim
eva
lue.
[LOG|SYSTEM|2008
May13,14:15:26(886)|ENGINE.batch]
Loaded16eventsin497
milliSecs
[END]
[LOG|SYSTEM|2008
May13,14:15:55(281)|Risk|BatchJob]
TimetoexecuteScenario24902ms
[END]
[LOG|SYSTEM|2008
May13,14:15:55(283)|RiskAnalysis|BatchJob]
ScenarioAnalysis
Executed
[SUCCESS]
[END]
[LOG|SYSTEM|2008
May13,14:16:12(870)|Risk|BatchJobThread]
TimetoexecuteScenario13662ms
[END]
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e13
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Par
sing
alo
gfile
Sin
ceth
ese
logfi
les
grow
quite
fast
and
since
itis
impos
sible
tore
star
tlo
ggin
gin
toa
new
file
when
anew
round
ofte
sts
isper
form
ed,th
eca
lcula
tion
ofav
erag
etim
esm
ust
be
pos
sible
from
any
poi
nt
inth
efile
onst
arting
with
agi
ven
dat
ean
dtim
esta
mp.
Using
asim
pleSEARCH
isnot
too
easy
since
log
entr
ies
are
atle
ast
thre
elin
esin
lengt
han
dsince
Iam
only
inte
rest
edin
entr
ies
ofth
efo
rmTime
to
execute
Scenario...
afte
ra
give
ntim
esta
mp.
All
ofth
isca
lled
for
ash
ort
Per
lpr
ogra
mto
par
seth
efile
and
com
pute
the
des
ired
aver
age
exec
ution
tim
eva
lue.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Par
sing
alo
gfile
usestrict;usewarnings;
die"Usage:
stat3
\"yyyymmmdd\"
\"hh:mm:ss\"
\n"if@ARGV!=
3;
my($file,$date,$mintime)=@ARGV;
my@values;
openmy$fh,’<’,$file
ordie"Couldnotopen$file:
$!\n";
{local$/=’[END]’;
while(my$entry=<$fh>)
{my($time,$duration)=$entry=∼
m/^.+\|.
+\|$
date,\s(\d
\d:\d
\d:\d
\d\s).*executeScenario\s(\d+)\sms/s;
push(@values,$duration)
if$timeand$timege$mintime;
}} close$fh;
print’Average:
’,int(eval(join(’+’,@values))/@values)/1e3,
’s(’,
@values
+0,")\n"if@values+
0;
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e14
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Are
ther
ean
yfile
sw
ith
W:W
Don
my
disk
?
One
day
Iwas
aske
d”H
owca
nyo
ube
sure
ther
ear
eno
file
son
your
syst
emdisk
whic
har
ew
rita
ble
byW
ORLD
?”
Good
ques
tion
–th
isca
llsfo
ra
shor
tPer
lpr
ogra
m.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Sea
rch
for
file
sw
ith
W:W
D
use
strict;
use
warnings;
my
($fc,
$mc)
=(0,
0);
for
my
$line
(‘dir/prot/width=(file=60)
[...]‘)
{my
($file,
$w)
=$line
=m/(.+)\s+.+,(.*)\)/;
next
unless
$file;
$fc++;
"$file\n"
and
$mc++
if
($w
=m/[WD]/);
"$fc
files
processed,
$mc
are
world
writable/deletable!\n";
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e15
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Mig
rating
aM
ySQ
Lda
taba
seto
RD
B
On
one
occ
asio
nIhad
tom
igra
tequite
alo
tof
dat
afrom
aM
ySQ
Ldat
abas
eru
nnin
gon
aLIN
UX
syst
emto
anRD
Bdat
abas
eru
nnin
gon
anO
pen
VM
Ssy
stem
.
The
firs
tid
eawas
tow
rite
adat
abas
edum
pfrom
the
MyS
QL
syst
em,re
form
atth
isusing
Per
lin
toso
met
hin
gw
hic
hco
uld
be
under
stood
byRD
Ban
dfe
edth
ere
sultin
gdat
ain
toth
eRD
Bsy
stem
.
This
turn
edou
tto
be
too
cum
ber
som
e,so
anot
her
appr
oach
was
take
n:
Write
ash
ort
Per
lpr
ogra
mco
nnec
ting
tobot
hdat
abas
esan
dco
pyin
gdat
aon
the
fly
from
one
syst
emto
the
other
.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Mig
rating
aM
ySQ
Ldat
abas
eto
RD
B(initia
lizat
ion)
usestrict;
usewarnings;
nowarningsqw/uninitialized/;
useNet::MySQL;
useDBI;
useDBD::RDB;
my$rdb=
DBI
->connect(
’dbi:RDB:ATTACHALIASRECIPESFILENAME
DISK$RDBDATA:[000000]RECIPES’,undef,undef,
RaiseError=>1,PrintError=>1,AutoCommit=>0,
ChopBlanks=>
1);
my@tables=qw/arteigenschafteneinheitenglutenfreikategorien
personenregionrezeptkategorienrezeptzutatenrecipeszustand
zutaten/;
my$mysql=Net::MySQL->new
(hostname=>
’klapauzius.pi-research.de’,
database=>’recipes’,user=>’rikka’,
password=>’:-)’);
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e16
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Pro
gra
ms
for
one
tim
eusa
ge
Mig
rating
aM
ySQ
Ldat
abas
eto
RD
B(c
opyi
ng
dat
a)
formy$table(@tables)
{$rdb->do("deletefromrecipes.$table");
$mysql->query("select*from$table");
my$recordset=$mysql->
createrecorditerator;
my@fields=$recordset->getfieldnames;
my$statement="insertintorecipes.$table(".
join(’,’,@fields).
’)
values(’.
join(’,’,map
{’?’}
0..$#fields).
’)’;
my$rdbsth=$rdb->
prepare($statement);
my$counter=0;
while(my$record=$recordset->each)
{$rdbsth->execute(@$record);
$rdb->commitunless$counter%50;
} $rdb->commitif$counter%
50;
print"\nInserted$counterlinesintorecipes.$table\n";
} $rdb->disconnect;
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Lar
ger
prog
ram
s
Man
ypr
oble
ms
whic
hocc
ur
ona
regu
lar
bas
isca
nbe
solv
edusing
Per
l,to
o.Exa
mple
sfo
rsu
chpr
oble
ms
are:
Gen
erat
ing
sim
ple
web
serv
erst
atistics
ona
dai
lybas
is.
Fet
chin
gm
ailfrom
aPO
Pse
rver
inre
gula
rtim
ein
terv
als
and
distr
ibuting
thes
em
ails
toth
eO
pen
VM
Sm
ailsy
stem
.
Sen
din
gou
tgoi
ng
mai
lsto
anSM
TP
serv
erre
quirin
gau
then
tica
tion
whic
his
not
curr
ently
suppor
ted
byO
pen
VM
S.
Cac
hin
gre
sults
from
dat
abas
equer
ies
tosp
eed
up
exec
ution
tim
eof
prog
ram
sre
ques
ting
dat
afrom
the
dat
abas
e.
Thes
eex
ample
sw
illbe
brie
fly
des
crib
edin
the
follo
win
g.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e17
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Sim
ple
web
serv
erst
atistics
Aft
erob
serv
ing
that
the
web
serv
erru
nnin
gon
my
Open
VM
Ssy
stem
isra
ther
busy
serv
ing
reques
tsIwan
ted
tohav
ea
sim
ple
web
serv
erst
atistics
tokn
oww
hic
hfile
sar
ere
ques
ted
how
ofte
nfrom
rem
ote
use
rs.
All
inal
lIwan
ted
toge
ner
ate
alo
gfile
like
this
ever
ynig
ht
ina
smal
lbat
chjo
b:
2734:
mymachines/dornier/do80/
288:
mymachines/bbc/tischanalogrechner/
117:
publications/anhyb.pdf
97:
publications/handson.pdf
88:
mymachines/eai/understanding/understanaloghybridcomp.m4a
83:
analogcomputing/vehiclesimulation/weakdamping.avi
72:
mymachines/dornier/do80/do80bedienungshandbuch.pdf
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Sim
ple
web
serv
erst
atistics
usestrict;
usewarnings;
die"Filenameandaccountname
expected!\n"unless@ARGV==2;
my($logfile,$account)=@ARGV;
openmy$fh,’<’,$logfileor
die"Unabletoopenlogfile
$logfile,$!\n";
my%matches;
while(my$line=<$fh>)
{my($ip,$key)=$line
=∼
m/^(\d+\.
\d+).*$account\/(.+?)\s/;
nextif!$ipor
$ip
eq’192.168’;
$key=∼
s/"//g;
$matches$key++
if$key;
} close$fh;
printf"%5d:
%s\n",$matches{$
},$
for(sort$matches$b<=>$matches$akeys(%matches));
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e18
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Fet
chin
gm
ailfrom
aPO
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erve
r
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etim
esit
isdes
irab
leto
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hm
ails
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aty
pic
alPO
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eran
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ake
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aila
ble
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pen
VM
Sm
ailsy
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esy
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use
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ibute
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suse
rsof
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Open
VM
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stem
.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
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gra
ms
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odule
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for
imple
men
ting
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chjo
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nt
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SIX
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sed
for
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ting
tem
por
ary
file
nam
es.
VM
S::M
ail;
Inte
rfac
eto
the
Open
VM
Sm
ailsy
stem
.
When
itis
pos
sible
tore
ceiv
em
ails,it
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ldbe
nic
eto
be
able
tose
nd
mai
ls,to
o,as
the
follo
win
gslid
essh
ow.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e19
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
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usion
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ct
Lar
ger
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gra
ms
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roxy
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ost
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rtunat
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entica
tion
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ted
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eT
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pac
kage
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VM
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ceIhad
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ent
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nd
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ldirec
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i.e.
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rmed
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ided
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ta
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roxy
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lm
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oing
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ade
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ofth
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ovid
er.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
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ct
Lar
ger
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gra
ms
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roxy
Eve
ryou
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sed
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ith
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ore
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ng
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ovid
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lved
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prob
lem
quite
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SM
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prox
ym
akes
use
ofth
efo
llow
ing
module
sw
hic
hre
sults
inan
over
allco
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size
ofon
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l:
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module
allo
ws
easy
pac
ket
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cation
.MIME::Base64;
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nco
din
gan
d-d
ecodin
gTie::RefHash;
Allo
ws
using
refe
rence
sas
has
hke
ys.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e20
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Ada
taba
sepr
oxy
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etim
esit
isdes
irab
leto
per
form
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tly
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oxy
whic
hm
ight
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me
busines
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gic
and/o
rca
che
asm
uch
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pos
sible
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dat
abas
elo
adat
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me
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ory
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oble
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and
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ting
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lto
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eth
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sults
foral
lfo
llow
ing
acce
sses
inst
ead
ofquer
ying
the
dat
abas
eca
me
up.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Ada
taba
sepr
oxy
(seri
alizin
gand
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��
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Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e21
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Lar
ger
pro
gra
ms
Ada
taba
sepr
oxy
The
spee
dup
effec
tw
hic
hca
nbe
obta
ined
using
this
Per
lw
ritt
endat
abas
epr
oxy
isdra
mat
ic:
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pic
alre
ques
tw
hic
hta
kes
3.2
seco
nds
when
issu
eddirec
tly
toth
edat
abas
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edin
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nds
using
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prox
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ith
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cach
e(i.e
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tly
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rst
artu
p).
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ere
ques
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edto
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prox
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hic
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read
yhas
the
required
dat
ain
its
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eta
kes
only
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seco
nds
and
isth
us
rough
lyte
ntim
esfa
ster
than
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direc
tdat
abas
eac
cess
.
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urs
etu
nin
gth
epr
oxy
with
resp
ect
toits
cach
esize
and
cach
elif
etim
edep
ends
onth
ety
pe
ofwor
kloa
d.
Ber
nd
Ulm
Per
land
Open
VM
S
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Concl
usion
Con
clus
ion
Per
ltu
rns
out
tobe
anin
valu
able
tool
for
ever
yday
usa
geas
wel
las
for
larg
ean
dco
mple
xpr
oduct
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prog
ram
s.
Esp
ecia
llyin
anO
pen
VM
Sen
viro
nm
ent
whic
hof
ten
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spec
ialnee
ds
when
itco
mes
tosy
stem
connec
tivi
tyan
dth
elik
e,Per
lca
nbe
emplo
yed
with
much
ben
efit.
Per
ldoes
not
consu
me
too
man
yre
sourc
esan
dis
real
lyfa
stfo
ran
inte
rpre
tive
langu
age,
soit
can
be
even
use
don
smal
ler
VA
Xsy
stem
s.
Itis
impor
tant
tore
aliz
eth
atPer
lis
not
asc
ripting
langu
age
but
rath
era
very
mig
hty
prog
ram
min
gla
ngu
age.
Thus
Per
lsh
ould
be
take
nse
riou
sly.
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e22
Outlin
eIn
troduct
ion
VM
Ssp
ecia
litie
sExa
mple
sConcl
usion
and
conta
ct
Conta
ct
Con
tact
The
auth
orca
nbe
reac
hed
at
Ber
nd
Ulm
Per
land
Open
VM
S
IT-S
ympo
sium
200
805
.06.
2008
ww
w.h
p-us
er-s
ocie
ty.d
e23