PERL \c char

Asteroid · 06-20-2010, 10:03 AM

Hi guys, I am stuck up in a situation. I have a SUN box with certain logs which I need to parse to draw a report using Perl.

Now, when I load the text file using a perl degugger to see how the text looks like when the first line of the log file is read in a variable. below is the snapshot of first line read from the file. My usefull values are like ITS=20100620082137,409 cIOTS=20100620082137,691. It seems \c is the character which could be used as value seperator.

Code:

"ITS=20100620082137,409\cIOTS=20100620082137,691\cIUSER=untrustedapp\cIOP=GetSubscriptionStatus\cIRC=1000\cIMSISDN=966501237533\cISID=61\cIDATA_CLI={SUBSCRIPTIONTYPE=10}\cIDATA_RES=\cI\cI"

So, I tried to split the values using the split function but Its not working. Any idea about this "\c" char and how can I manage to split the text in my text file.

Code:

@values = split('\c', $item);

Moreover, when I cat my log file the /c char is not visible rather the values are seperated by spaces as below.

Code:

ITS=20100620102817,341  OTS=20100620102817,603  USER=untrustedapp       OP=GetSubscriptionStatus        RC=1000 MSISDN=966535468329

maxmeier12 · 06-20-2010, 10:38 AM

The character you see is not \c but the control character \cI so maybe you can split("\cI", ...).

Sergei Steshenko · 06-20-2010, 12:13 PM

Quote:

Originally Posted by Asteroid

Hi guys, I am stuck up in a situation. I have a SUN box with certain logs which I need to parse to draw a report using Perl.

Now, when I load the text file using a perl degugger to see how the text looks like when the first line of the log file is read in a variable. below is the snapshot of first line read from the file. My usefull values are like ITS=20100620082137,409 cIOTS=20100620082137,691. It seems \c is the character which could be used as value seperator.

Code:

"ITS=20100620082137,409\cIOTS=20100620082137,691\cIUSER=untrustedapp\cIOP=GetSubscriptionStatus\cIRC=1000\cIMSISDN=966501237533\cISID=61\cIDATA_CLI={SUBSCRIPTIONTYPE=10}\cIDATA_RES=\cI\cI"

So, I tried to split the values using the split function but Its not working. Any idea about this "\c" char and how can I manage to split the text in my text file.

Code:

@values = split('\c', $item);

Moreover, when I cat my log file the /c char is not visible rather the values are seperated by spaces as below.

Code:

ITS=20100620102817,341  OTS=20100620102817,603  USER=untrustedapp       OP=GetSubscriptionStatus        RC=1000 MSISDN=966535468329

First find our the ASCII code of what is seen as '\c' - use 'ord' function for that:

perldoc -f ord

; you'll probably need 'substr' too:

perldoc -f substr
.

When you're done with that, it will be pretty obvious how to write 'split'.

Asteroid · 06-21-2010, 01:28 AM

Hi, maxmeier12 Thx buddy. Ur idea worked. I replaced /c with /cI and it worked ...

bigearsbilly · 06-21-2010, 05:50 AM

\cI = ctrl-I is a TAB.

also,

if you use single quotes in perl it won't substitute value

"\n" is a newline
'\n' is literally two characters '\' and 'n'

try split "\cI" or better, split "\t"