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Top Forums Shell Programming and Scripting awk command to test if a string is a file Post 302362033 by Arsenalman on Wednesday 14th of October 2009 08:43:15 PM
Old 10-14-2009
awk command to test if a string is a file

What awk command will test a string to determine if it is a valid file name?

With the following awk statement I isolate the lines from the inputfile that might contain a filename, then I attempt to test the possible filename which is always in $4 from each line. However it is not working at all as i do not think the system command gets passed $4 from awk. Have been struggling with this all day

Quote:
if ( $1 ~ /^$/ )
then
system("ls $4;echo $?")
{ print $0
 

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gendesc(1)							   User Manuals 							gendesc(1)

NAME
gendesc - Generate a test case description file SYNOPSIS
gendesc [-h|--help] [-v|--version] [-o|--output-filename filename] inputfile DESCRIPTION
Convert plain text test case descriptions into a format as understood by genhtml. inputfile needs to observe the following format: For each test case: - one line containing the test case name beginning at the start of the line - one or more lines containing the test case description indented with at least one whitespace character (tab or space) Example input file: test01 An example test case description. Description continued test42 Supposedly the answer to most of your questions Note: valid test names can consist of letters, decimal digits and the underscore character ('_'). OPTIONS
-h --help Print a short help text, then exit. -v --version Print version number, then exit. -o filename --output-filename filename Write description data to filename. By default, output is written to STDOUT. AUTHOR
Peter Oberparleiter <Peter.Oberparleiter@de.ibm.com> SEE ALSO
lcov(1), genhtml(1), geninfo(1), genpng(1), gcov(1) 2010-08-06 LCOV 1.9 gendesc(1)
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