Difference between revisions of "Bash script template"
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m (Created page with "Below is a script template with options. <source lang=bash> #!/bin/bash # # FILNAME - SHORT DESCRIPTION # # (c) 2012 - DONALD DUCK <dd@disney.org> - all rights reserved # # THIS ...") |
m |
||
| Line 24: | Line 24: | ||
N=1 # Default set | N=1 # Default set | ||
UNIT="" | UNIT="" | ||
| + | TEXT="Distance between A and B" | ||
usage() { | usage() { | ||
| Line 31: | Line 32: | ||
echo " -r r flag" | echo " -r r flag" | ||
echo " -c c flag with value" | echo " -c c flag with value" | ||
| − | echo " -n | + | echo " -n n flag - unset" |
echo " -t t flag with text" | echo " -t t flag with text" | ||
echo " -h help" | echo " -h help" | ||
echo "" | echo "" | ||
echo " Description line1" | echo " Description line1" | ||
| − | echo " Description | + | echo " Description line2" |
exit 1 | exit 1 | ||
} | } | ||
| Line 42: | Line 43: | ||
# collect options and override default | # collect options and override default | ||
| − | while getopts ' | + | while getopts 'ct:mkr:n' CMDLINEARG |
do | do | ||
case "${CMDLINEARG}" in | case "${CMDLINEARG}" in | ||
c) | c) | ||
COUNT=${OPTARG} | COUNT=${OPTARG} | ||
| + | ;; | ||
| + | t) | ||
| + | TEXT=${OPTARG} | ||
;; | ;; | ||
m|k) | m|k) | ||
| Line 66: | Line 70: | ||
echo -e "Settings" | echo -e "Settings" | ||
echo -e "COUNT = $COUNT" | echo -e "COUNT = $COUNT" | ||
| + | echo -e "TEXT = $TEXT" | ||
echo -e "UNIT = $UNIT" | echo -e "UNIT = $UNIT" | ||
echo -e "R = $R" | echo -e "R = $R" | ||
echo -e "N = $N" | echo -e "N = $N" | ||
echo -e "Done..." | echo -e "Done..." | ||
| − | + | </source> | |
| + | Running the script - example | ||
| + | <source lang=bash> | ||
| + | heth@mars:~/bin$ ./bash_template -t "Hyde" -n -m -c 67 | ||
| + | Settings | ||
| + | COUNT = | ||
| + | TEXT = Hyde | ||
| + | UNIT = m | ||
| + | R = | ||
| + | N = | ||
| + | Done... | ||
</source> | </source> | ||
[[Category:bash]][[category:Linux]] | [[Category:bash]][[category:Linux]] | ||
Revision as of 07:15, 2 May 2012
Below is a script template with options.
#!/bin/bash
#
# FILNAME - SHORT DESCRIPTION
#
# (c) 2012 - DONALD DUCK <dd@disney.org> - all rights reserved
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
# default settings
COUNT=0
unset R # Default unset
N=1 # Default set
UNIT=""
TEXT="Distance between A and B"
usage() {
echo "usage: $0 [-mkrh] [-c count -n] [-t text]"
echo " -m m flag fx. report result in miles"
echo " -k k flag fx. report result in km"
echo " -r r flag"
echo " -c c flag with value"
echo " -n n flag - unset"
echo " -t t flag with text"
echo " -h help"
echo ""
echo " Description line1"
echo " Description line2"
exit 1
}
# collect options and override default
while getopts 'ct:mkr:n' CMDLINEARG
do
case "${CMDLINEARG}" in
c)
COUNT=${OPTARG}
;;
t)
TEXT=${OPTARG}
;;
m|k)
[ ! -z "${UNIT}" ] && echo '-m and -k are mutually exclusive. Select miles or km.'\
&& usage
UNIT="${CMDLINEARG}"
;;
r)
R=${CMDLINEARG}
;;
n)
N=${OPTARG}
;;
h|*)
usage
;;
esac
done
echo -e "Settings"
echo -e "COUNT = $COUNT"
echo -e "TEXT = $TEXT"
echo -e "UNIT = $UNIT"
echo -e "R = $R"
echo -e "N = $N"
echo -e "Done..."
Running the script - example
heth@mars:~/bin$ ./bash_template -t "Hyde" -n -m -c 67
Settings
COUNT =
TEXT = Hyde
UNIT = m
R =
N =
Done...