PATH
="/usr/local/bin:$PATH"; export PATH
# block is the disk block size (best guess, need not be exact)
warn
="(does not preserve modes and timestamp)"
if test -z "`(${CPMOD-cpmod} $tmp.1 $tmp.2) 2>&1`"; then
if test -z "$cpmod" && ${TOUCH-touch} -r $tmp.1 $tmp.2 2>/dev
/null
; then
warn
="(does not preserve file modes)"
# check if GZIP env. variable uses -S or --suffix
ext
=`echo $tmp.1* | sed "s|$tmp.1||"`
echo znew
: error determining
gzip extension
if test "$ext" = ".Z"; then
echo znew
: cannot use .Z as
gzip extension.
-*) opt
="$opt $arg"; shift;;
echo "recompress .Z files into $ext (gzip) files"
echo usage
: `echo $0 | sed 's,^.*/,,'` "[-tv9KP]" file.Z...
echo " -t tests the new files before deleting originals"
echo " -9 use the slowest compression method (optimal compression)"
echo " -K keep a .Z file when it is smaller than the $ext file"
echo " -P use pipes for the conversion $warn"
opt
=`echo "$opt" | sed -e 's/ //g' -e 's/-//g'`
*t
*) check
=1; opt
=`echo "$opt" | sed 's/t//g'`
*K
*) keep
=1; opt
=`echo "$opt" | sed 's/K//g'`
*P
*) pipe
=1; opt
=`echo "$opt" | sed 's/P//g'`
n
=`echo $i | sed 's/.Z$//'`
if test ! -f "$n.Z" ; then
test $keep -eq 1 && old
=`wc -c < "$n.Z"`
if test $pipe -eq 1; then
if gzip -d < "$n.Z" |
gzip $opt > "$n$ext"; then
# Copy file attributes from old file to new one, if possible.
test -n "$cpmod" && $cpmod $cpmodarg "$n.Z" "$n$ext" 2> /dev
/null
echo error
while recompressing
$n.Z
if test $check -eq 1; then
if cp -p "$n.Z" "$n.$$" 2> /dev
/null ||
cp "$n.Z" "$n.$$"; then
echo cannot backup
"$n.Z"
test $check -eq 1 && mv "$n.$$" "$n.Z"
echo error
while uncompressing
$n.Z
if test $check -eq 1; then
mv "$n.$$" "$n.Z" && rm -f "$n"
echo error
while recompressing
$n
# compress $n (might be dangerous if disk full)
echo error
while recompressing
$n, left uncompressed
test $keep -eq 1 && new
=`wc -c < "$n$ext"`
if test $keep -eq 1 -a `expr \( $old + $block - 1 \) / $block` -lt \
`expr \( $new + $block - 1 \) / $block`; then
if test $pipe -eq 1; then
elif test $check -eq 1; then
mv "$n.$$" "$n.Z" && rm -f "$n$ext"
gzip -d "$n$ext" && compress "$n" && rm -f "$n$ext"
echo "$n.Z smaller than $n$ext -- unchanged"
elif test $check -eq 1; then
if gzip -t "$n$ext" ; then
test $pipe -eq 0 && mv "$n.$$" "$n.Z"
echo error
while testing
$n$ext, $n.Z unchanged
elif test $pipe -eq 1; then