sample script (was Re: grep : -r ... )

[Andrew L. Moore]

In message <address@hidden>, Andre Gompel writes:
>Hello:
>grep : -r (recursive) option does not work in the follwing context:
>
>grep -ri   string *.c

If typing "find -X . '*.c' | xargs -n30 grep string" is tiresome,
you might try something like the script below.  Sample usage:

       $ ffn -il string '*.c'

NB: quote the file glob to avoid expansion by the shell

---- Cut Here ----
#!/bin/ksh -
#
#       @(#)ffn                 1.0
#
# This script greps files matching a pattern under the current folder.
#
umask 077
PATH=/bin:/usr/bin

integer i=0
integer j=0

USAGE="usage: ffn [egrep-options] egrep-pattern [file-glob ...]"

while :; do
        [ $# -gt 0 ] ||
                { echo $USAGE >&2; exit 2; }
        arg="$1"
        shift
        case "$arg" in
        "")
                ;;
        --)
                break
                ;;
        -*)
                egrep_arg[i++]="$arg"
                ;;
        *)
                egrep_arg[i++]="$arg"
                break
                ;;
        esac
done
(( i>0 )) || { echo $USAGE >&2; exit 2; }
for file_glob; do
        find_arg[j++]="-name '$file_glob'"
done
eval find -X . "address@hidden" | xargs -n30 egrep  "address@hidden"