--- zgrep.in.orig 2002-09-27 22:53:14.000000000 -0700
+++ zgrep.in 2006-09-22 18:04:16.000000000 -0700
@@ -24,7 +24,7 @@
PATH="BINDIR:$PATH"; export PATH
-prog=`echo $0 | sed 's|.*/||'`
+prog=`echo "$0" | sed 's|.*/||'`
case "$prog" in
*egrep) grep=${EGREP-egrep} ;;
*fgrep) grep=${FGREP-fgrep} ;;
@@ -93,20 +93,38 @@
res=0
for i do
- gzip -cdfq "$i" |
+ gzip -cdfq -- "$i" |
if test $files_with_matches -eq 1; then
- $grep $opt "$pat" > /dev/null && echo $i
+ $grep $opt "$pat" > /dev/null && printf "%s\n" "$i"
elif test $files_without_matches -eq 1; then
- $grep $opt "$pat" > /dev/null || echo $i
+ $grep $opt "$pat" > /dev/null || printf "%s\n" "$i"
elif test $with_filename -eq 0 && { test $# -eq 1 || test $no_filename -eq 1; }; then
$grep $opt "$pat"
else
+ i=$(echo "$i" | sed -e 's/[\\|&]/\\&/g')
if test $with_filename -eq 1; then
sed_script="s|^[^:]*:|${i}:|"
else
sed_script="s|^|${i}:|"
fi
- $grep $opt "$pat" | sed "$sed_script"
+ # Hack adapted from GPLed code at
+ # http://home.comcast.net/~j.p.h/cus-faq-2
+ # Has the same effect as the following two lines of bash:
+ #
+ # $grep $opt "$pat" | sed "$sed_script"
+ # exit ${PIPESTATUS[0]}
+ #
+ # Inside the `...`, fd4 goes to the pipe whose other end is read
+ # and passed to eval; fd1 is the normal standard output
+ # preserved the line before with exec 3>&1
+ exec 3>&1
+ eval `
+ exec 4>&1 >&3 3>&-
+ {
+ $grep $opt "$pat" 4>&-; echo "r=$?;" >&4
+ } | sed "$sed_script"
+ `
+ exit $r
fi
r=$?
test $res -lt $r && res=$r