X-Git-Url: http://git.iain.cx/?p=profile.git;a=blobdiff_plain;f=opt%2Fbin%2Ffind_working;h=454e365c69785181d533679073ddf502ac6859dc;hp=cec62fade0f03ab6c13c93b1bcfc844efaaf85c4;hb=6b31a2df164c14ef4fb443f6eb617b83b14fd60d;hpb=a3f02d8c8b8616d1690b382e1e4035e3c0df0dc1 diff --git a/opt/bin/find_working b/opt/bin/find_working index cec62fa..454e365 100755 --- a/opt/bin/find_working +++ b/opt/bin/find_working @@ -2,8 +2,9 @@ # # find_working: Find a version of some tool in the PATH which actually runs. # Usage: find_working [options] -# Options: -a Use arguments to test executable files. Default --help. -# -A Don't test arguments to executable files. +# Options: -A Don't test arguments to executable files. +# -a Use arguments to test executable files. Default --help. +# -g Search string in output. Default . # -q Don't print path to prog. Just exit 0 if found. # -x Don't try to execute unreadable files. Assume success. # -X Don't try to execute unreadable files. Assume failure. @@ -12,10 +13,12 @@ args="-h -? --help" quiet=0 unreadable= -while getopts ":a:AqxX" opt; do +re= +while getopts ":Aa:g:qxX" opt; do case $opt in - a) args="$OPTARG";; A) args="";; + a) args="$OPTARG";; + g) re="$OPTARG";; q) quiet=1;; x) unreadable=0;; X) unreadable=1;; @@ -26,28 +29,34 @@ shift $((OPTIND-1)) prog="$1"; shift if [ -z "$prog" ]; then echo >&2 "Usage: find_working [options] " - echo >&2 "Options: -a Use arguments to test executable files. Default --help." - echo >&2 " -A Don't test arguments to executable files." + echo >&2 "Options: -A Don't test arguments to executable files." + echo >&2 " -a Use arguments to test executable files. Default --help." + echo >&2 " -g Search string in output. Default ." echo >&2 " -q Don't print path to prog. Just exit 0 if found." echo >&2 " -x Don't try to execute unreadable files. Assume success." echo >&2 " -X Don't try to execute unreadable files. Assume failure." exit 1 fi +[ -z "$re" ] && re="\\b$prog\\b" + +# Default args contain -? which might be interpreted as a glob. +set -o noglob + ret= for path in ${PATH//:/ }; do [ -x "$path/$prog" ] || continue if [ -r "$path/$prog" ]; then if [ -n "$args" ]; then - "$path/$prog" $args 2>&1 | grep " $prog " >/dev/null || continue + "$path/$prog" $args 2>&1 | grep "$re" >/dev/null || continue else ldd "$path/$prog" 2>/dev/null | grep "not found" >/dev/null && continue fi ret="$path/$prog" break elif [ -z "$unreadable" ]; then - "$path/$prog" $args 2>&1 | grep " $prog " >/dev/null || continue + "$path/$prog" $args 2>&1 | grep "$re" >/dev/null || continue ret="$path/$prog" break elif [ $unreadable = 0 ]; then