Executable Aliases

aliases.bsh

Because bash scripts do not use alias by default, common external programs are soft-coded using an all-caps variable name (e.g. tar is called using "${TAR}". Simply source aliases.bsh and use the variables. For example, instead of hard-coding “tar” everywhere, use the variable TAR so that when the need comes, it is easier to switch which executable gets called. When an alias variable is used, this variable should be surrounded by quotes, e.g. "${TAR}".

Variables should default to the common executable name, and allow the user to override them.

For example, SSH defaults to ssh. There are a number of ways to override this:

• SSH=ssh2 - Finds the command on the path called ssh2

• SSH=/usr/local/bin/ssh - Uses a full path

• function ssh3(){ SSH_FLAG=3 ssh -v ${@+"${@}"}; }; export -f ssh3; SSH=ssh3 - Use an exported function

• echo '#!/usr/bin/env bash' > ~/foo; echo 'ssh -v ${@}' >> ~/foo; chmod 755 ~/foo; SSH=~/foo

Note

SSH="ssh -v" will look for an executable called ssh -v, instead of running ssh with the -v flag, as desired.

GIT

Name/path of git executable

Default:

git

TAR

Name/path of tar executable

Default:

tar

DOCKER

Name/path of docker executable

Default:

docker

DOCKER_COMPOSE

Name/path of docker compose command

Default:

docker compose (note, this is a bash array by default)

SINGULARITY

Name/path of singularity executable

Default:

singularity

NVIDIA_SMI

Name/path of nvidia-smi executable

Default:

nvidia-smi

NVCC

Name/path of nvcc executable

Default:

nvcc

SSH

Name/path of ssh executable

Default:

ssh

GPG

Name/path of gpg executable

Default:

Favors gpg2 if it’s installed, else gpg