Sponsored Content
Full Discussion: perl regex multi line cut
Top Forums Shell Programming and Scripting perl regex multi line cut Post 302434287 by agn on Friday 2nd of July 2010 04:39:14 AM
Old 07-02-2010
Code:
$ cat t.pl
$line = <<EOF;
=comment
blabla
blablabla
bla
=cut
woohoo
EOF
$line =~ s/^=.+?=cut//sg;
print $line;
$ perl t.pl

woohoo

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how do i strip this line using perl regex.

I have a variable dynamically generated $batch = /dataload/R3P/interface/Bowne/reports/RDI00244.rpt Now I'd like to strip '/dataload/R3P/interface/Bowne/reports/RDI' and '.rpt' from this variable my output should be only 00244 how to do this using perl regex.I'm a newbie to perl and would... (1 Reply)
Discussion started by: ramky79
1 Replies

2. Shell Programming and Scripting

Multi-line Substitution Gone Awry - perl

I've been working on this all night and finally have to ask for help... and not just from my coffee pot. I need to replace a line of text only when it is proceeded by a line containing only the letter "H" Input: H -2.204711 -0.922090 -0.024814 P 6-311+G(d) **** C 6-311+G(d)... (7 Replies)
Discussion started by: EmperorNorton
7 Replies

3. Shell Programming and Scripting

How to use Perl to merge multi-line into single line

Hi, Can anyone know how to use perl to merge the following multi-line information which beginning with "BAM" into one line. For each line need to delete the return and add a space. Please see the red color line. ******Org. Multi-line) BAM admin 101.203.57.22 ... (3 Replies)
Discussion started by: happyday
3 Replies

4. Shell Programming and Scripting

Perl REGEX - How do extract a string in a line?

Hi Guys, In the following line: cn=portal.090710.191533.428571000,cn=groups,dc=mp,dc=rj,dc=gov,dc=br I need to extract this string: portal.090710.191533.428571000 As you can see this string always will be bettween "cn=" and "," strings. Someone know one regular expression to... (4 Replies)
Discussion started by: maverick-ski
4 Replies

5. Shell Programming and Scripting

How to use Perl to join multi-line into single line

Hello, Did anyone know how to write a perl script to merge the multi-line into a single line where each line with start at timestamp Input--> timestamp=2009-11-10-04.55.20.829347; a; b; c; timestamp=2009-11-10-04.55.20.829347; aa; bb; cc; (5 Replies)
Discussion started by: happyday
5 Replies

6. Shell Programming and Scripting

sed - multi-line regex syntax eval puzzle

sed novice bashing away at this.... I am trying to build a sed script that will find the instances of "cn" that have more than one "DirXML" value on them.... see sample below: I am not having any luck with any variation that tries to find "DirXML.*\nDirXML.*". Isn't there a way to get sed to... (6 Replies)
Discussion started by: gosleddog
6 Replies

7. Shell Programming and Scripting

Multi-line filtering based on multi-line pattern in a file

I have a file with data records separated by multiple equals signs, as below. ========== RECORD 1 ========== RECORD 2 DATA LINE ========== RECORD 3 ========== RECORD 4 DATA LINE ========== RECORD 5 DATA LINE ========== I need to filter out all data from this file where the... (2 Replies)
Discussion started by: Finja
2 Replies

8. Shell Programming and Scripting

Perl regex to remove a segment in a line

Hello, ksh on Sun5.8 here. I have a pipe-delimited, variable length record file with sub-segments identified with a tilda that we receive from a source outside of our control. The records are huge, and Perl seems to be the only shell that can handle the huge lines. I am new to Perl, and am... (8 Replies)
Discussion started by: gary_w
8 Replies

9. Shell Programming and Scripting

Multi line regex for search and replace

I have text file like below: a.txt Server=abc Run=1 Time=120.123 Tables=10 Sessions=16 Time=380.123 Version=1.1 Jobs=5 Server=abc Run=2 Time=160.123 Tables=15 Sessions=16 Time=400.258 Version=2.0 (1 Reply)
Discussion started by: sol_nov
1 Replies

10. Shell Programming and Scripting

Get multi-line sed not to run if regex is found

Hello, everyone. Thanks for taking the time to read my post. I have nagios config files for which I'm adding the custom variable _mac_address. I have a sed script that places this variable into an existing file. The problem I'm having is if a line in the file is commented out, I don't want the... (2 Replies)
Discussion started by: JimBass
2 Replies
CAT(1)							      General Commands Manual							    CAT(1)

NAME
cat, read, nobs - catenate files SYNOPSIS
cat [ file ... ] read [ -m ] [ -n nline ] [ file ... ] nobs [ file ... ] DESCRIPTION
Cat reads each file in sequence and writes it on the standard output. Thus cat file prints a file and cat file1 file2 >file3 concatenates the first two files and places the result on the third. If no file is given, cat reads from the standard input. Output is buffered in blocks matching the input. Read copies to standard output exactly one line from the named file, default standard input. It is useful in interactive rc(1) scripts. The -m flag causes it to continue reading and writing multiple lines until end of file; -n causes it to read no more than nline lines. Read always executes a single write for each line of input, which can be helpful when preparing input to programs that expect line-at-a- time data. It never reads any more data from the input than it prints to the output. Nobs copies the named files to standard output except that it removes all backspace characters and the characters that precede them. It is useful to use as $PAGER with the Unix version of man(1) when run inside a win (see acme(1)) window. SOURCE
/src/cmd/cat.c /src/cmd/read.c /bin/nobs SEE ALSO
cp(1) DIAGNOSTICS
Read exits with status eof on end of file or, in the -n case, if it doesn't read nlines lines. BUGS
Beware of and which destroy input files before reading them. CAT(1)
All times are GMT -4. The time now is 12:35 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy