https://github.com/bahamas10/bash-interactivity

Utilities to work with bash while interactive
https://github.com/bahamas10/bash-interactivity

Last synced: about 2 months ago
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Utilities to work with bash while interactive

• Host: GitHub
• URL: https://github.com/bahamas10/bash-interactivity
• Owner: bahamas10
• Created: 2013-10-03T16:44:17.000Z (about 11 years ago)
• Default Branch: master
• Last Pushed: 2014-03-25T05:05:24.000Z (over 10 years ago)
• Last Synced: 2024-05-08T20:01:55.659Z (8 months ago)
• Language: Shell
• Size: 141 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
bash-interactivity

============

Utilities to work with bash while interactive

Usage

-----

### `args`

Print arguments as read from the command line after wordsplitting, taken from

http://mywiki.wooledge.org/Arguments

    $ args hello "how are" you

    3 args:   

### `cdir`

`cd` into the dirname of the last argument, useful for if you've ever tried

cd'ing into a file instead of a directory

    ~ $ cd dev/something/file.txt

    -bash: cd: file.txt: No such file or directory

    ~ $ cdir

    ~/dev/something $

### `limitcolumns`

Limit the number of columns printed to terminal size or 80 if size cannot be

determined

    $ cat file.txt

    some really long line

    some short line

    $ cat file.txt | limitcolumns 20

    some really long li>

    some short line

- `$1` - the number of columns to limit the output to, defaults to terminal

width, falling back on `80`

### `parr`

Print a bash array by name

This uses `eval`, as that is the only way to reference an array

that has its name stored in a variable while retaining indices (for

associative and sparse arrays).

More info on why indirection won't work for this here

http://mywiki.wooledge.org/BashFAQ/006#Evaluating_indirect.2Freference_variables

Note: the output generated by this function is NOT safe to eval

by the shell, this is just meant to inspect the contents of array,

like `var_dump` in PHP, or `console.dir` in JavaScript

    $ a=([0]="hello" [1]="how are" [5]="you")

    $ parr a

    (

            [0]=`hello`

            [1]=`how are`

            [5]=`you`

    )

This will also work for associative arrays in Bash >= 4

    $ parr BASH_ALIASES

    (

            [urldecode]=`python -c 'import sys;import urllib as u;print u.unquote_plus(sys.stdin.read());'`

            [basher]=`~/.basher/basher`

            [joyentstillpaying]=`sdc-listmachines | json -a -c "state !== 'running'" name state`

            [gerp]=`grep`

            [lsdisks]=`kstat -lc disk :::class | field 3 :`

            [ls]=`ls -p --color=auto`

            [cdir]=`cd "${_%/*}"`

            [urlencode]=`python -c 'import sys;import urllib as u;print u.quote_plus(sys.stdin.read());'`

            [cpp2c]=`sed -e 's#//\(.*\)#/*\1 */#'`

            [externalip]=`curl -s http://ifconfig.me/ip`

            [l]=`ls -CF`

            [lsnpm]=`npm ls -g --depth=0`

            [chomd]=`chmod`

    )

Exports

-------

### Aliases

- `cdir`

### Functions

- `args`

- `limitcolumns`

- `parr`

### Bash Completion

Provided for...

- `parr`

Installation

------------

### bics

Use [bics](https://github.com/bahamas10/bics) to manage this plugin

After installing `bics`, install this plugin by running

    bics install git://github.com/bahamas10/bash-interactivity.git

### manually

    git clone git://github.com/bahamas10/bash-interactivity.git

    cd bash-interactivity

    cat interactivity.bash >> ~/.bashrc

    exec bash

License

-------

MIT