Questions tagged [getopts]
`getopts` is a shell built-in used to parse command line options, while `getopt` is its non-built-in counterpart.
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Manipulating arguments with OPTIND, OPTARG, getopts, and shift correctly
My small POSIX shell scripts do not usually take any arguments, so this is kind of new to me...
The minimal snippet would probably look like this:
# default for hotkey variable on top of script is set
...
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getopt with several `--`
I have a script with this usage:
myscript [options] positional-args... -- [fwd-params]
Because [options] can have long, or short variants, I like using getopt. But I'm having troubles.
I use getopt ...
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pass all parameters to another sourced bash script that uses getopts
I am trying to pass all parameters from one script to another. However, there is an issue when the other script is sourced; all parameters are not passing correctly.
first.sh:
#!/usr/bin/bash
while ...
- 13
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script arguments in bash
I am working on a a script that need to take two script arguments and use them as variables in the script. I couldn't get this working and unable to find out what I am doing wrong. I see the issue is ...
- 391
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Bash getopts error handling
This is an error I encountered when playing with Getopts. The following is the code snippet I have been playing simply listen to 3 options when executing a script.
while getopts "vcn" opt; ...
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How bash getopts knows what arguments the call has
If getopts is a bash function, by my understanding, you need to pass $@ - the whole arguments to getopts to let the function know what kind of arguments you have in order to proceed, right?
It seems ...
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how to exit immediately with getopts option in bash script
what I tried.
#!/bin/bash
# set -e
echo hello
while getopts sr o; do
case $o in
s)
echo "no"
yell() { echo "$0: $*" >&2; }
die() { yell "...
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What does colon (:) mean for getopts?
I am trying to parse options for my script with getopts and I decided that it would be best to read up on it in the POSIX standard, as it's usually extremely helpful. The DESCRIPTION section is fairly ...
- 101
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Is there a tool or macro processor capable of compactly expressing BASH CLI interfaces?
I am writing scripts with the following boilerplate CLI pattern:
usage(){
echo "$0 yada yada"
...
echo
}
for arg in "$@"; do
case "$arg" in
'--help|-help') ...
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95
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Multichar options in Unix sysytems
I have a usecase wherein I need to support multiple character option. Currently I am using single character option for getopts. Multi-character option is desirable.What's the best way of doing this? I ...
- 101
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How to check for passed options using getopts in a POSIX shell? (Report, count, and discard.)
How to check for passed options using getopts (man page) in a POSIX shell? (Report, count, and discard.)
My idea is this: Many of my scripts take no options (not even -h for help, I am transitioning ...
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The workings of getopts OPTIND
I want to understand how OPTIND works by getopts. If I want to skip the first few positional arguments, how should I set up OPTIND exactly ?
And because OPTIND is not reset automatically, I need to ...
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1
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0
answers
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What the... Variable String [duplicate]
I believe I am running into a scenario where escaping quotes and utilizing variables as strings is causing some issues and after some hours of troubleshooting this isn't seeming to come to a ...
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getopts for more than 4 parser arguments
I want to parse multiple arguments using getopts in a bash script using the code below.
while getopts b:B:m:M:T flag
do
case "${flag}" in
b) rbmin=${OPTARG};;
B) rbmax=${...
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How to mix plain arguments with flagged arguments in bash scripting?
for instance, gcc accepts the input file without any flag and the output file with the -o flag in:
gcc input.c -o output.out
or
gcc -o output.out input.c
I am creating a random password generator bash ...
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