117 lines
2.4 KiB
Bash
Executable File
117 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
|
|
# Look for program[s] somewhere in $PATH.
|
|
#
|
|
# Options:
|
|
# -s
|
|
# Do not print out full pathname. (silent)
|
|
# -pPATHNAME
|
|
# Look in PATHNAME instead of $PATH
|
|
#
|
|
# Usage:
|
|
# PrintPath [-s] [-pPATHNAME] program [program ...]
|
|
#
|
|
# Initially written by Jim Jagielski for the Apache configuration mechanism
|
|
# (with kudos to Kernighan/Pike)
|
|
#
|
|
# This script falls under the Apache License.
|
|
# See http://www.apache.org/licenses/LICENSE
|
|
|
|
##
|
|
# Some "constants"
|
|
##
|
|
pathname=$PATH
|
|
echo="yes"
|
|
|
|
##
|
|
# Find out what OS we are running for later on
|
|
##
|
|
os=`(uname) 2>/dev/null`
|
|
|
|
##
|
|
# Parse command line
|
|
##
|
|
for args in $*
|
|
do
|
|
case $args in
|
|
-s ) echo="no" ;;
|
|
-p* ) pathname="`echo $args | sed 's/^..//'`" ;;
|
|
* ) programs="$programs $args" ;;
|
|
esac
|
|
done
|
|
|
|
##
|
|
# Now we make the adjustments required for OS/2 and everyone
|
|
# else :)
|
|
#
|
|
# First of all, all OS/2 programs have the '.exe' extension.
|
|
# Next, we adjust PATH (or what was given to us as PATH) to
|
|
# be whitespace separated directories.
|
|
# Finally, we try to determine the best flag to use for
|
|
# test/[] to look for an executable file. OS/2 just has '-r'
|
|
# but with other OSs, we do some funny stuff to check to see
|
|
# if test/[] knows about -x, which is the preferred flag.
|
|
##
|
|
|
|
if [ "x$os" = "xOS/2" ]
|
|
then
|
|
ext=".exe"
|
|
pathname=`echo -E $pathname |
|
|
sed 's/^;/.;/
|
|
s/;;/;.;/g
|
|
s/;$/;./
|
|
s/;/ /g
|
|
s/\\\\/\\//g' `
|
|
test_exec_flag="-r"
|
|
else
|
|
ext="" # No default extensions
|
|
pathname=`echo $pathname |
|
|
sed 's/^:/.:/
|
|
s/::/:.:/g
|
|
s/:$/:./
|
|
s/:/ /g' `
|
|
# Here is how we test to see if test/[] can handle -x
|
|
testfile="pp.t.$$"
|
|
|
|
cat > $testfile <<ENDTEST
|
|
#!/bin/sh
|
|
if [ -x / ] || [ -x /bin ] || [ -x /bin/ls ]; then
|
|
exit 0
|
|
fi
|
|
exit 1
|
|
ENDTEST
|
|
|
|
if `/bin/sh $testfile 2>/dev/null`; then
|
|
test_exec_flag="-x"
|
|
else
|
|
test_exec_flag="-r"
|
|
fi
|
|
rm -f $testfile
|
|
fi
|
|
|
|
for program in $programs
|
|
do
|
|
for path in $pathname
|
|
do
|
|
if [ $test_exec_flag $path/${program}${ext} ] && \
|
|
[ ! -d $path/${program}${ext} ]; then
|
|
if [ "x$echo" = "xyes" ]; then
|
|
echo $path/${program}${ext}
|
|
fi
|
|
exit 0
|
|
fi
|
|
|
|
# Next try without extension (if one was used above)
|
|
if [ "x$ext" != "x" ]; then
|
|
if [ $test_exec_flag $path/${program} ] && \
|
|
[ ! -d $path/${program} ]; then
|
|
if [ "x$echo" = "xyes" ]; then
|
|
echo $path/${program}
|
|
fi
|
|
exit 0
|
|
fi
|
|
fi
|
|
done
|
|
done
|
|
exit 1
|
|
|