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Top Forums UNIX for Dummies Questions & Answers No error in awk... Post 302969973 by jlliagre on Wednesday 30th of March 2016 07:58:33 PM
Old 03-30-2016
To detect random input, I'd rather add this test after getline:

Code:
if(FREQ !=0 && FREQ+0==0) { printf("Invalid frequency: [%s]\n",FREQ); exit 1 ; }

Note that all your lines are ended by a semicolon but this is not needed with awk. Unlike with C, an end of line is already ending a command so the semicolon is only required to delimit multiple commands on a single line.
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cpufreq-selector(1)					      General Commands Manual					       cpufreq-selector(1)

NAME
cpufreq-selector -- tool to set CPU frequency SYNOPSIS
cpufreq-selector [-c CPU] [-g GOV] [-f FREQ] DESCRIPTION
cpufreq-selector is a command-line tool for choosing CPU frequency settings. OPTIONS
This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. -?, --help " 10 Show summary of options. -c NUMBER, --cpu=NUMBER " 10 number of CPU to set. If omitted, zeroth CPU is implied. -g GOV, --governor=GOV " 10 CPU governor to use, such as ``powersave'', ``performance''. -f FREQ, --freq=FREQ " 10 CPU frequency to use, in kHz. AUTHOR
cpufreq-selector, as part of gnome-applets, was written by Carlos Garcia Campos carlosgc@gnome.org and other GNOME contributors. This manual page was written by Theppitak Karoonboonyanan thep@linux.thai.net for the Debian system (but may be used by others). Permis- sion is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later ver- sion published by the Free Software Foundation. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL. cpufreq-selector(1)
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