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Full Discussion: Why cant?
Top Forums UNIX for Dummies Questions & Answers Why cant? Post 4870 by LivinFree on Thursday 2nd of August 2001 04:19:18 AM
Old 08-02-2001
Try:
if [ -e /path/to/file ] ; then
.....
else
.....
fi


Also, with awk, when you define an external variable to an internal one, make sure the external is set... In clearer terms, see the following:

grep $1 $FILE | awk -F, -v ARG2=$2 '{print $1 $ARG2}'
(Example from one of my simple automation scripts at work, where $1 and $2 are the normal shell-assigned arguments.)

In this particular script, called grab, it is called like so:

./grab /*unique identifier*/ /*field number from flat file*/
i.e.- ./grab 015901492 43

That line looks for the unique identifier, then prints out the field number from the comma-delimited (that's what the "-F," is for) flat file I asked for, in the example, 43.

This might not make any sense, but I do hope it helps...

 
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). Free Software Foundation Nov 3 1999 IGAWK(1)
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