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Added help option

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This commit is contained in:
Dave Kennedy 2016-02-10 23:51:15 -07:00
parent 5913503be2
commit e070cc84e9
1 changed files with 15 additions and 15 deletions
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30
mkstage4.sh
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@ -11,9 +11,17 @@ fi
EXCLUDE_BOOT=0
EXCLUDE_CONNMAN=0
QUIET=0
USAGE="usage:\n\
`basename $0` [-q -c -b] [-s || -t <target-mountpoint>] <archive-filename> [custom-tar-options]\n\
-q: activates quiet mode (no confirmation).\n\
-c: excludes connman network lists.\n\
-b: excludes boot directory.\n\
-s: makes tarball of current system.\n\
-t: makes tarball of system located at the <target-mountpoint>.\n\
-h: displays help message."
# reads options:
while getopts ':t:sqcb' flag; do
while getopts ':t:sqcbh' flag; do
case "${flag}" in
t)
TARGET="$OPTARG"
@ -30,6 +38,10 @@ while getopts ':t:sqcb' flag; do
b)
EXCLUDE_BOOT=1
;;
h)
echo -e "$USAGE"
exit 0
;;
\?)
echo "Invalid option: -$OPTARG" >&2
exit 1
@ -44,13 +56,7 @@ done
if [ "$TARGET" == "" ]
then
echo "`basename $0`: no target specified."
echo "syntax:"
echo "\$ `basename $0` [-q -c -b] [-s || -t <target-mountpoint>] <archive-filename> [custom-tar-options]"
echo "-q: activates quiet mode (no confirmation)."
echo "-c: excludes connman network lists."
echo "-b: excludes boot directory."
echo "-s: makes tarball of current system."
echo "-t: makes tarball of system located at the <target-mountpoint>."
echo -e "$USAGE"
exit 1
fi
@ -62,13 +68,7 @@ ARCHIVE=$1
if [ "$ARCHIVE" == "" ]
then
echo "`basename $0`: no archive file name specified."
echo "syntax:"
echo "\$ `basename $0` [-q -c -b] [-s || -t <target-mountpoint>] <archive-filename> [custom-tar-options]"
echo "-q: activates quiet mode (no confirmation)."
echo "-c: excludes connman network lists."
echo "-b: excludes boot directory."
echo "-s: makes tarball of current system."
echo "-t: makes tarball of system located at the <target-mountpoint>."
echo -e "$USAGE"
exit 1
fi