Sub-Alias

Apply alias to sub-commands

Description

I don't like longer commands. So I often use alias.
Just like following:

$ alias d=docker
$ d ps
# `docker ps`

Infrequently, we want to use alias to sub-command.
However, alias command can apply for command only.

salias means sub-alias. salias makes it possible to apply alias to sub-commands.

Usage

Set a subalias:

$ salias <program> <subalias>=<subcommand>

Remove a subalias:

$ unsalias <program> <subalias>

For example:

$ salias go i=install # set a sub-alias
$ salias docker c=container
$ exec $SHELL # reload the shell

$ go i github.com/golang/go
# `go install github.com/golang/go` 

$ docker c ls
# `docker container ls`

$ unsalias go i # delete a sub-alias

Equipments

Go v1.13 or newer
bash, Zsh or fish

Installation

$ go get github.com/ktr0731/salias
$ sudo ln $GOPATH/bin/salias /usr/bin/ # If $GOPATH/bin is not in $PATH.

Set sub-alias definition file

Please create one of these files:

$SALIAS_PATH
$XDG_CONFIG_HOME/salias/salias.toml
$HOME/salias.toml

Then use salias <command> <subalias>=<subcommand> to set sub-alias. Or edit salias.toml manually.

Make sub-alias initializes automatically

Add following command.

.bashrc or .zshrc.

source <(salias --init) # or `salias -i` for short

config.fish

source (salias --init | psub)

How It Works

When initialization, salias registers the command as salias's alias.

# [go]
# b = "build"
$ source <(salias --init)
$ type go
go is an alias for salias --run go

salias find sub-alias that is sub-command of passed command as arguments.
If hit sub-alias, execute it.
Or not found, execute as it is.

License

Please see LICENSE.

ktr0731 / salias