Perl Meta character understanding Post: 302445980

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

What is the meta character for the Ctrl button?

In this script I have, it says press Ctrl+W+? for help, but it doesn't do anything. I looked in the script and it binds: bind ^W meta2_character. How do I make it the Ctrl button so I can do Ctrl+W? (There are some other commands that use Ctrl+W+another character/letter/number.)

2. UNIX for Dummies Questions & Answers

Doubt with regexp-meta character

Hi, I am learning reg exp a bit :) Meta char info: {n,m} Matches the preceding character at least n times but not more than m times, for example, 'ba{2,3}b' will find 'baab' and 'baaab' but NOT 'bab' or 'baaaab'. Values are enclosed in braces (curly brackets). Input file: 112 11112...

3. Shell Programming and Scripting

perl command understanding

Hi All, Can you please help me interpret the following command. Which I am not able to understand. Also can you please illustrate what it is used for. perl -pi -e 's/\015//g' text_file.dat Regards

4. UNIX for Dummies Questions & Answers

List files using { } meta character

p { margin-bottom: 0.08in; } How to match all files that end with the release number using the { } meta character in /boot.

5. Shell Programming and Scripting

Perl: Understanding @allwords

Hi guys, Here is the code: my @allwords = (); my %seen=(); foreach my $curr (@allwords) { $seen{$curr} = 1; } @allwords = keys %seen; my question is: what will @allwords now contain, or how would the entries in the @allwords array be different after this manipulation? Thank...

6. Shell Programming and Scripting

Understanding perl statement

can someone help me how to interpret this line? my ($class, $hashref) = @_; my $portfolio = {}; if ($hashref->{portfolio_id}) { ($portfolio) = GEmySQL->get ("select * from portfolio where portfolio.id=$hashref->{portfolio_id}"); } =============== Question: how do...

7. Shell Programming and Scripting

Help understanding some Perl code.

Well, I found myself trying to fix some Perl code (Ive never done any Perl in my life) and I pinpointed the place where the bug could be. But to be sure I have to know what does a few line of code mean: $files_lim =~ (/^\d*$/) $files_lim =~ (/^\d*h$/) $files_age =~ s/h// The code where...

8. Shell Programming and Scripting

Help with perl code understanding

Hi, I need to understand below perl code, can some one advise me. perl -MDate::Parse -e'BEGIN{$main::now=time;$main::old=(time-60*30)}' -nE'if(/^(\w+\s+\d+\s+\d+:\d+:\d+)/) {$t=str2time $1; $t > $old && $t < $now && print}'

LEARN ABOUT PHP

ssh-argv0

SSH-ARGV0(1)						    BSD General Commands Manual 					      SSH-ARGV0(1)

NAME

     ssh-argv0 -- replaces the old ssh command-name as hostname handling

SYNOPSIS

     hostname | user@hostname [-l login_name] [command]

     hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name]
     [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command]

DESCRIPTION

     ssh-argv0 replaces the old ssh command-name as hostname handling.	If you link to this script with a hostname then executing the link is
     equivalent to having executed ssh with that hostname as an argument.  All other arguments are passed to ssh and will be processed normally.

OPTIONS

     See ssh(1).

FILES

     See ssh(1).

AUTHORS

     OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
     Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH.  Markus Friedl contributed the support for SSH
     protocol versions 1.5 and 2.0.  Jonathan Amery wrote this ssh-argv0 script and the associated documentation.

SEE ALSO

     ssh(1)

Debian Project							 September 7, 2001						    Debian Project