#!/bin/bash
 
if [[ -n ${ESED} ]]; then
exec ${ESED} "$@"
elif type -p gsed > /dev/null ; then
exec gsed "$@"
else
old_IFS="${IFS}"
IFS=":"
 
SEARCH=${PATH#*:}
for path in $SEARCH; do
if [[ -x $path/sed ]]; then
exec $path/sed "$@"
exit 0
fi
done
 
IFS="${old_IFS}"
fi
 
exit 1