Today I Learnt more Bash

tips

Sgoti talks

about supplying options to bash scripts

Tags: Bash tips, TIL, getopts

#!/bin/bash

# License: GPL v3

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program. If not, see <https://www.gnu.org/licenses/>.

#Name: showtime.sh

#Purpose: Time to make a show.

#Version: beta 0.01

#Author: SGOTI (Some Guy On The Internet)

#Date: 2023-12-29

#variables:

bindir=/usr/bin/

cat=${bindir}cat

date=${bindir}date

echo=${bindir}echo

mkdir=${bindir}mkdir

dirshow0=${HOME}/Music/hpr/shows

dirshow1=${dirshow0}/$(${date} +%Y)

dirqueue=${dirshow1}/queue/$(${date} +%F)

dirreserve=${dirshow1}/reserve-queue/$(${date} +%F)

#start:

function help() {

${cat} << EOH

Usage: $0 [-s] [-r] [-q] [-h] name-of-show

-s (Regular queue)

-r (Reserve queue)

-q (quit)

-h (help)

Examples:

$0 -s name-of-show

$0 -r name-of-show

$0 -q

$0 -h

EOH

}

## Use `getopts` to read user option into script. ##

while getopts ":s:r:q:h" option; do

case $option in

s)

show=$OPTARG

function mkq () {

${mkdir} -v -p ${dirqueue}/${show}/edit;

${mkdir} -v -p ${dirqueue}/${show}/prod;

${cat} > ${dirqueue}/${show}/edit/${show}.md << _EOD_

# ${show} #

## subtitle ##

- Tags:

This work is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/ "CC-BY-SA 4.0 International").

_EOD_

builtin pushd -n ${dirqueue}/${show}/edit;

builtin pushd -n ${dirqueue}/${show}/prod;

}

if [ -d ${dirshow1} ]; then

mkq

else

${echo} "Good Heavens! It's a new year.";

${mkdir} -v -p ${dirshow1};

mkq

fi

;;

r)

reserve=$OPTARG

function mkr () {

${mkdir} -v -p ${dirreserve}/${reserve}/edit;

${mkdir} -v -p ${dirreserve}/${reserve}/prod;

${cat} > ${dirreserve}/${reserve}/edit/${reserve}.md << _EOD_

# ${reserve} #

## subtitle ##

- Tags:

This work is licensed under a [Creative Commons Attribution-ShareAlike 4.0 International License](https://creativecommons.org/licenses/by-sa/4.0/ "CC-BY-SA 4.0 International").

_EOD_

builtin pushd -n ${dirreserve}/${reserve}/edit;

builtin pushd -n ${dirreserve}/${reserve}/prod;

}

if [ -d ${dirshow1} ]; then

mkr

else

${echo} "Good Heavens! It's a new year.";

${mkdir} -v -p ${dirshow1};

mkr

fi

;;

q)

${echo} "Goodbye.";

exit

;;

h)

help

exit

;;

*)

if [ -z "${option}" ]; then

help

exit 1

fi

${echo} "Good Heavens! Invalid input.";

help

exit

;;

esac

done

exit;

#!/bin/bash

# License: GPL v3

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be us