10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
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This is regex to select functions from a C/C++ source and defined in... (2 Replies)
Discussion started by: alex_5161
2 Replies
2. Shell Programming and Scripting
Hi Guys,
I am trying to work out the regular expression that I would need to capture the below information. I need to find the word SAC followed by using the data thats contained on the next line. I have other expressions that i have configured but none are where the output is on two... (2 Replies)
Discussion started by: mutley2202
2 Replies
3. Shell Programming and Scripting
Hi I am trying to match lines having following string
BIND dn="uid=
putting something like this is not working :
/\sBIND dn="uid=/
Any suggestion.
Thanks. John (9 Replies)
Discussion started by: john_prince
9 Replies
4. Shell Programming and Scripting
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Discussion started by: suntzu
1 Replies
5. Shell Programming and Scripting
I have a basic question regarding * and . while using regex:
# echo 3 | grep ^*$
3
I think I understood why it outputs "3" here (because '*' matches zero or more of the previous character) but I don't understand the output of the following command:
# echo 3 | grep ^.$
#
I thought I... (7 Replies)
Discussion started by: mirage
7 Replies
6. Shell Programming and Scripting
Hello all
Is there a "not" reversal method for the =~ regex thingy in perl ?
for example, in the snippet below, i have placed a ! in front of the =~ to "not it".. although it quite obviously doesn't work and is just me trying to get across the question in a way that somebody may understand :o... (2 Replies)
Discussion started by: rethink
2 Replies
7. Shell Programming and Scripting
Hi, im sure this is really simple but i cant quite figure it out. how do i test against a word at the beginning of the line but up to the point of a delimiter i.e. ":"
for example if i wanted to test against the user in the /etc/passwd file
peter:x:101:100:peters account:/var/peter:/bin/sh
... (3 Replies)
Discussion started by: hcclnoodles
3 Replies
8. Shell Programming and Scripting
Hi
I have a question on regex
There is a line in a script like
my_file="$(echo SunMonTueWed | sed "s//_&g") "
My question what does the expression _&g do.
Obviously in this example the output is
_Sun_Mon_Tue_Wed
Another question can i use some trick to get the result like... (3 Replies)
Discussion started by: xiamin
3 Replies
9. Shell Programming and Scripting
I have the following code:
#!/usr/bin/perl -w
@files = <*.csv>;
foreach $file (@files) {
open(FH, $file) || die("Error: Cannot open file $file for reading.");
my @dt = ($file =~ /^(\w+).(\d{6})\.csv$/);
while (<FH>) {
print "@dt $_\n";
}
close(FH);
}
There is redundancy... (10 Replies)
Discussion started by: figaro
10 Replies
10. UNIX for Dummies Questions & Answers
hi,
i got a problem with understanding regular expressions. what i wanna do is
scanning the wtmp logfile for ips and if a specific ip is echoed id like to be a part of a text to be assigned to it.
the scanning is done with
#! /bin/bash
cat wtmp | strings | egrep -o "+\.+\.+\." | sort -u... (6 Replies)
Discussion started by: rocketkids
6 Replies
