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Full Discussion: Signal question
Top Forums Shell Programming and Scripting Signal question Post 302071301 by jim mcnamara on Friday 14th of April 2006 06:46:21 AM
Old 04-14-2006
The first line
Code:
ls /etc/sysconfig/network > /dev/null 2>&1

would be used to find out if /etc/sysconfig/network exists or not
The output of ls is redirected to the bit bucket, and @>&1 redirects stderr (2) into stdout (1). This means that the ls command cannot produce anyout to the tty.

The "#@" -- if this is at the beginning of a line it's a comment, comments start with #.
If it's embedded somewhere in the middle of something like a regular expression, I have no idea.

What does this have to do with signals?
 

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GRC(1)							      General Commands Manual							    GRC(1)

NAME
grc - frontend for generic colouriser grcat(1) SYNOPSIS
grc [options] command [args] DESCRIPTION
grc will execute command command with optional parameters [args] piping its stdout or stderr into grcat, with apropriate configuration file. Configuration file for grc is determined by /etc/grc.conf file. Format of /etc/grc.conf: each entry consists of 2 lines, between entries there can be any number of empty lines or lines beginning with # (comments) First line is regular expression, second line the name of configuration file for grcat. Configuration file after the first regular expression matching command [args] will be passed to grcat as its configuration file OPTIONS
--help Show summary of options. --version Display version. -e --stderr Redirect error output. Unless -s is selected as well, this cancels redirection of standard output via grcat -s --stdout Redirect standard output. Used to redirect standard output together with --stderr option. --colour=x x is one of on off auto --colour=on will colourise (default) --colour=off will just execute command without colourising. --colour=auto will test if standard output is a tty, and colourise only when it is. SEE ALSO
grcat(1) AUTHOR
Written by Radovan Garabik <garabik @ kassiopeia.juls.savba.sk> GRC(1)
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