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Top Forums Shell Programming and Scripting Checking existence of file using awk Post 302592096 by manish007 on Sunday 22nd of January 2012 08:35:28 PM
Old 01-22-2012
Checking existence of file using awk

Hi,

I need to check whether a particular file exists ot not using awk.
Can anyone help me please?
For Example:script that i am using:
Code:
awk '{filename =$NF;
rc=(system("test -r filename")) print $rc;}' "$1"

is not working.
Here I am passing a text file as input whose last word contains a filename..
Input File FOrmat
Code:
word1 word2 <filename>
word1 word2 word3 <filename>

and so on

Thanks In Advance
Manish

Last edited by Franklin52; 01-23-2012 at 10:09 AM.. Reason: Please use code tags for data and code samples, thank you
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWgawk | +--------------------+-----------------+ |Interface Stability | Volatile | +--------------------+-----------------+ NOTES
Source for gawk is available on http://opensolaris.org. Free Software Foundation Nov 3 1999 IGAWK(1)
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