PCRE string questions. Post: 302363125

4 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

...yet another string of awk/sed questions from a RegExp-Challenged luser %-\

Greetings all, ...here is yet another string of awk/sed questions from a RegExp-Challenged luser :eek: I'm looking to have sed/awk do some clean-up on routing tables and to that end, I would like to do the following: 1.) If a line contains the word "masks" or "subnets" prepend CR/LF to...

2. Programming

messy questions: how to convert a string into a int64 in linux

Recently I was stuck at 64bit questions in 32pc....... lots of unknown questions came up .... as mentioned : messy questions: how to convert a string into a int64 in linux i tried ll = atoll(string) but faild btw: ll is defined as : long long ll = 0; I print the return like this:...

3. Shell Programming and Scripting

PCRE negative lookahead

I have read many tutorials and cannot get this to work. I need to use pcre (because that is what the library in the software we are using uses) and pcregrep everything except /home from the /etc/fstab pcregrep '(?!/home)' /etc/fstab It returns the entire fstab (This is on a RHEL5...

4. UNIX for Advanced & Expert Users

Postfix - pcre

Hello. I need to test valid sender address. I have created a rule in main.cf : smtpd_sender_login_maps = pcre:/etc/postfix/sender_login_maps.pcre smtpd_sender_restrictions = reject_non_fqdn_sender, reject_unknown_sender_domain, reject_sender_login_mismatch THe file...

LEARN ABOUT CENTOS

string::shellquote

ShellQuote(3)						User Contributed Perl Documentation					     ShellQuote(3)

NAME

       String::ShellQuote - quote strings for passing through the shell

SYNOPSIS

	   $string = shell_quote @list;
	   $string = shell_quote_best_effort @list;
	   $string = shell_comment_quote $string;

DESCRIPTION

       This module contains some functions which are useful for quoting strings which are going to pass through the shell or a shell-like object.

       shell_quote [string]...
	   shell_quote quotes strings so they can be passed through the shell.	Each string is quoted so that the shell will pass it along as a
	   single argument and without further interpretation.	If no strings are given an empty string is returned.

	   If any string can't be safely quoted shell_quote will croak.

       shell_quote_best_effort [string]...
	   This is like shell_quote, excpet if the string can't be safely quoted it does the best it can and returns the result, instead of dying.

       shell_comment_quote [string]
	   shell_comment_quote quotes the string so that it can safely be included in a shell-style comment (the current algorithm is that a sharp
	   character is placed after any newlines in the string).

	   This routine might be changed to accept multiple string arguments in the future.  I haven't done this yet because I'm not sure if the
	   strings should be joined with blanks ($") or nothing ($,).  Cast your vote today!  Be sure to justify your answer.

EXAMPLES

	   $cmd = 'fuser 2>/dev/null ' . shell_quote @files;
	   @pids = split ' ', `$cmd`;

	   print CFG "# Configured by: ",
		       shell_comment_quote($ENV{LOGNAME}), "
";

BUGS

       Only Bourne shell quoting is supported.	I'd like to add other shells (particularly cmd.exe), but I'm not familiar with them.  It would be
       a big help if somebody supplied the details.

AUTHOR

       Roderick Schertler <roderick@argon.org>

SEE ALSO

       perl(1).

perl v5.16.3							    2010-06-11							     ShellQuote(3)