author | Oleksandr Gavenko <gavenkoa@gmail.com> |
Mon, 19 Oct 2015 17:04:52 +0300 | |
changeset 1769 | cadd23f8127f |
parent 1346 | a2fbf50a43f4 |
child 1905 | fba288d59662 |
permissions | -rw-r--r-- |
1069 | 1 |
.. -*- coding: utf-8; -*- |
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9bf0d5a1f0cf
Include common header with quick links.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
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changeset
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.. include:: HEADER.rst |
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======= |
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Bash. |
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======= |
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Fix: Has no 'contents::' directive.
Oleksandr Gavenko <gavenkoa@gmail.com>
parents:
1334
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.. contents:: |
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How override PS1, PS2? |
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====================== |
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When loading bash read ~/.bash_profile and ~/.bashrc. |
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Put at end of these files:: |
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PS1='\u@\H$ ' |
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When xterm start bash - it start as non-login. So ~/.bash_profile and ~/.bashrc |
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didn't read. To workaround this use:: |
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$ xterm -e bash -i -c "mc -x" |
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That make bash interactive and init file was readed. |
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Command history. |
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================ |
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Bash allow accessing to command that you type previously. There are several |
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options to control command history behavior. Set corresponding variables in |
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your ~/.bashrc file (which is read by interactive shell):: |
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# ignorespace do not save lines that start with space |
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# erasedups all previous lines matching the current line to be removed from |
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# the history list before that line is saved |
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export HISTCONTROL=igrorespace:erasedups |
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export HISTIGNORE=" ?cd *":"e *":"sudo mv *":"sudo rm *":"sudo cp *":"sudo mkdir *":"sudo chmod *":"sudo chown *":ls:pwd:"vlc*" |
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There are another options, with default values (which satisfy my needs, so |
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I don't put they to ~/.bashrc):: |
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export HISTFILE=~/.bash_history # where is command history stored |
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export HISTFILESIZE=500 # how many lines been in $HISTFILE |
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export HISTSIZE=500 # how many lines been stored in bash process |
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mc (GNU Midnight Commander). |
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---------------------------- |
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You can also set special history rules for mc subshell in ~/.mc/bashrc file. |
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Bash history. |
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============= |
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http://wiki.bash-hackers.org/scripting/bashchanges |
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This article is an incomplete overview of changes to Bash over |
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the time. |
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