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Shell Programming and Scripting
Using variables for exclusion in tar
Post 302438239 by jim mcnamara on Monday 19th of July 2010 07:17:34 AM
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dear all
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TIA
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LEARN ABOUT REDHAT
sysctl
SYSCTL(8) SYSCTL(8) NAME
sysctl - configure kernel parameters at runtime SYNOPSIS
sysctl [-n] [-e] variable ... sysctl [-n] [-e] -w variable=value ... sysctl [-n] [-e] -p <filename> (default /etc/sysctl.conf) sysctl [-n] [-e] -a sysctl [-n] [-e] -A DESCRIPTION
sysctl is used to modify kernel parameters at runtime. The parameters available are those listed under /proc/sys/. Procfs is required for sysctl(8) support in Linux. You can use sysctl(8) to both read and write sysctl data. PARAMETERS
variable The name of a key to read from. An example is kernel.ostype. The '/' separator is also accepted in place of a '.'. variable=value To set a key, use the form variable=value, where variable is the key and value is the value to set it to. If the value contains quotes or characters which are parsed by the shell, you may need to enclose the value in double quotes. This requires the -w param- eter to use. -n Use this option to disable printing of the key name when printing values. -e Use this option to ignore errors about unknown keys. -w Use this option when you want to change a sysctl setting. -p Load in sysctl settings from the file specified or /etc/sysctl.conf if none given. -a Display all values currently available. -A Display all values currently available in table form. EXAMPLES
/sbin/sysctl -a /sbin/sysctl -n kernel.hostname /sbin/sysctl -w kernel.domainname="example.com" /sbin/sysctl -p /etc/sysctl.conf FILES
/proc/sys /etc/sysctl.conf SEE ALSO
sysctl.conf(5) BUGS
The -A parameter behaves just as -a does. AUTHOR
George Staikos, <staikos@0wned.org> 21 Sep 1999 SYSCTL(8)