Bourne Shell: Difference between revisions
Created page with "Bourne Shell (sh) ==Initialisation== # System file: <tt>/etc/profile</tt> # User: <tt>~/.profile</tt> (environment and terminal settings) ==Variables== *HOME - home director..." |
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==Variables== | ==Variables== | ||
*CDPATH - cd search path | |||
*HOME - home directory | *HOME - home directory | ||
*IFS - internal field separator | *IFS - internal field separator | ||
*LOGNAME | *LOGNAME | ||
*MAIL - mailbox location | |||
*MAILCHECK - check time interval | |||
*PATH - search path | *PATH - search path | ||
*PS1 - primary prompt | *PS1 - primary prompt | ||
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*PWD - present working directory | *PWD - present working directory | ||
*SHELL | *SHELL | ||
*TERM - terminal type | |||
==Built-in Commands== | ==Built-in Commands== | ||
Revision as of 18:10, 14 February 2018
Bourne Shell (sh)
Initialisation
- System file: /etc/profile
- User: ~/.profile (environment and terminal settings)
Variables
- CDPATH - cd search path
- HOME - home directory
- IFS - internal field separator
- LOGNAME
- MAIL - mailbox location
- MAILCHECK - check time interval
- PATH - search path
- PS1 - primary prompt
- PS2 - secondary prompt
- PWD - present working directory
- SHELL
- TERM - terminal type
Built-in Commands
- . (dot)
Special Metacharacters
; command separator
& background process
() command group in subshell
{} command group without subshell
| pipe
< redirected input
> redirected output
newl command termination
space word delimiter
$ variable substitution
*[]? filename expansion
- Backslash (\) used for quoting a single character.
- Single quotes
- Double quotes