cli-shezargs #

A utility to make command-line shell args easy to use. (I should have called it "cli-sh-ez-args", but that seemed
cumbersome.)

$3

``sh
npm install -g cli-shezargs
`

And then:

`sh
#!/bin/bash -e

eval "$(cli-shezargs $@)"
`

Which parses your command-line args and creates bash variables (see below.)
For example, `--foo=bar` will get you:

`sh
foo=bar
`

$3

I always hated the boiler plate at the top of all of my shell scripts:

`sh
#!/bin/bash -e

Helper functions

die() {
echo "$@"
exit 1
}

...

parse args

for param in "$@"; do
case $param in

--service=*)
service="${param#*=}"
;;

# ...

esac
done

...

`

Now, I can just:

`sh
#!/bin/bash -e

parse args and setup common functions

eval "$(cli-shezargs $@)"

...

`

$3

The main benefit is that you will have variables set for each command-line
argument. But you also get `die()` and some other functions.

`sh

"--foo=quxx" becomes

foo="quxx"

and "beanie --foo-be=bar baby --foo-it --baz- --foo=quxx -- --not-an-arg" becomes

foo_be="bar"
foo_it="1"
unset baz
foo="quxx"
set -- "beanie" "baby" "--not-an-arg"

`

That last line has the effect of setting $1 to "beanie", $2 to "baby", $3 to "--not-an-arg", and $# to 3.

Look at `scripts/common.sh` for the functions that you will have. Modify and submit a PR to add your favorites. :)

Options #

`sh


Easiest -- parses args and add helper functions from scripts/common.sh

eval "$(cli-shezargs $@)"

Include file support

eval "$(cli-shezargs __f $$ $0 $@)"

Really the easiest -- just gives scripts

eval "$(cli-shezargs)"
`

File support gets you:

* `TMP_DIR`, `TMP_FILE`, `LOG_FILE`, and `JSON_FILE`, which are set to
newly-created temp files (in `/tmp/...` and using the PID to guarantee uniqueness).
* `script_dir` -- the dir for the bash script.

How To #

You must have Node.js, and then:

Install:

`sh
npm install -g cli-shezargs
`

Put this snippet at the top of your scripts:

`sh
eval "$(cli-shezargs $@)"
`

And then use `--this-style-of=command --line- --args``