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authorGravatar Mike Frysinger <vapier@gentoo.org>2016-04-04 01:35:34 -0400
committerGravatar Mike Frysinger <vapier@gentoo.org>2016-04-04 01:35:34 -0400
commitee22fe8793679e0f366a5501e3c7b576a9eb46c9 (patch)
tree0c16b56890277c94eaf93f38ccad0ee2f1189390 /examples
parentea1b44412a5802f507880ae8b705d58360e387c0 (diff)
downloadbusybox-ee22fe8793679e0f366a5501e3c7b576a9eb46c9.tar.gz
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undeb: clean up
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'examples')
-rwxr-xr-xexamples/undeb74
1 files changed, 40 insertions, 34 deletions
diff --git a/examples/undeb b/examples/undeb
index 37104e9d8..c30baf31b 100755
--- a/examples/undeb
+++ b/examples/undeb
@@ -5,49 +5,55 @@
# Requires the programs (ar, tar, gzip, and the pager more or less).
#
usage() {
-echo "Usage: undeb -c package.deb <Print control file info>"
-echo " undeb -l package.deb <List contents of deb package>"
-echo " undeb -x package.deb /foo/boo <Extract deb package to this directory,"
-echo " put . for current directory>"
-exit
+ cat <<EOF
+Usage: undeb -c package.deb <Print control file info>
+ undeb -l package.deb <List contents of deb package>
+ undeb -x package.deb /foo/boo <Extract deb package to this directory,
+ put . for current directory>
+EOF
+ exit
}
deb=$2
exist() {
-if [ "$deb" = "" ]; then
-usage
-elif [ ! -s "$deb" ]; then
-echo "Can't find $deb!"
-exit
-fi
+ if [ -z "${deb}" ]; then
+ usage
+ elif [ ! -s "${deb}" ]; then
+ echo "Can't find ${deb}!"
+ exit 1
+ fi
}
-if [ "$1" = "" ]; then
-usage
+if [ -z "$1" ]; then
+ usage
elif [ "$1" = "-l" ]; then
-exist
-type more >/dev/null 2>&1 && pager=more
-type less >/dev/null 2>&1 && pager=less
-[ "$pager" = "" ] && echo "No pager found!" && exit
-(ar -p $deb control.tar.gz | tar -xzO *control ; echo -e "\nPress enter to scroll, q to Quit!\n" ; ar -p $deb data.tar.gz | tar -tzv) | $pager
-exit
+ exist
+ type more >/dev/null 2>&1 && pager=more
+ type less >/dev/null 2>&1 && pager=less
+ [ -z "${pager}" ] && echo "No pager found!" && exit 1
+ (
+ ar -p "${deb}" control.tar.gz | tar -xzO *control
+ printf "\nPress enter to scroll, q to Quit!\n\n"
+ ar -p "${deb}" data.tar.gz | tar -tzv
+ ) | ${pager}
+ exit
elif [ "$1" = "-c" ]; then
-exist
-ar -p $deb control.tar.gz | tar -xzO *control
-exit
+ exist
+ ar -p "${deb}" control.tar.gz | tar -xzO *control
+ exit
elif [ "$1" = "-x" ]; then
-exist
-if [ "$3" = "" ]; then
-usage
-elif [ ! -d "$3" ]; then
-echo "No such directory $3!"
-exit
-fi
-ar -p $deb data.tar.gz | tar -xzvpf - -C $3 || exit
-echo
-echo "Extracted $deb to $3!"
-exit
+ exist
+ if [ -z "$3" ]; then
+ usage
+ elif [ ! -d "$3" ]; then
+ echo "No such directory $3!"
+ exit 1
+ fi
+ ar -p "${deb}" data.tar.gz | tar -xzvpf - -C "$3" || exit
+ echo
+ echo "Extracted ${deb} to $3!"
+ exit
else
-usage
+ usage
fi