This article will describe using sh-script package which provides major mode for shell script. This package is built-in emacs.
Table of Contents
1 Run sh-script
Open *.sh file or run M-x sh-mode.
2 ${HOME}/.emacs
sh-basic-offset and sh-indentation are tab width. sh-shell-file is default of shebang. If not setting sh-shell-file, SHELL variable will be default.
(setq sh-basic-offset 2) (setq sh-indentation 2) (setq sh-shell-file "/bin/sh")
3 Key bindings
Key bindings helps to run and to input syntax. In case of pressing C-c C-w, while statement will be inputed.
condition: [ ]
3.1 Running
Key bindings for running is as below.
| C-c : | Add shebang and run "chmod a+x" to file" |
| C-c x | Run shell script |
| C-M-x | RUn shell script to selected region |
Selected region is done by C-space / C-Shift-space which is used for copy.
3.2 Syntax
Key bindings for syntax is as below.
| C-c C-w | while statement |
| C-c C-i | if statement |
| C-c C-c | case statement |
| C-c C-f | for statement |
| C-c + | `expr $v + 1` |
3.3 Temporally variable
Key bindings for temporally variable is as below. This temporally variable will be removed with trap when shell script is over.
| C-c C-t | Create temporally variable with mktemp and trap |