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== Sort & Remove Duplicates ==
== Sort & Remove Duplicates ==
This will sort and remove duplicate commands from your .bash_history file in the /root directory, as well as reducing it file size.
This will sort and remove duplicate commands from your .bash_history file in the /root directory, as well as reducing the file size.
After you execute the command below, you should edit the file and remove any commands or lines that have errors in them so they aren't
After you execute the command below, you should edit the file and remove any commands or lines that have errors in them so they aren't
executed accidentally.
executed accidentally.
<pre>
<pre>
sort -u /root/.bash_history -o /root/.bash_history
sort -u /root/.bash_history -o /root/.bash_history | uniq
</pre>
</pre>
==Expand memory of your .bash_history==
== Expand memory of your .bash_history ==
Expand the memory of your .bash_history to 2000 lines adding this on your .bashrc:
Expand the memory of your .bash_history to 2000 lines adding these lines to your .bashrc:
<pre>
<pre>
export HISTFILESIZE=2000
export HISTFILESIZE=2000
</pre>
</pre>
==Add Date/time to each line in your .bash_history==
== Add Date/time to each line in your .bash_history ==
Add Date/time to each line in your history adding this on your .bashrc:
Add Date/time to each line in your history adding this line to your .bashrc:
<pre>
<pre>
export HISTTIMEFORMAT='%F %T '
export HISTTIMEFORMAT='%F %T '
Create a .inputrc, or edit your /etc/inputrc, with :
Create a .inputrc, or edit your /etc/inputrc, with :
<pre>"\e[A": history-search-backward
<pre>
"\e[A": history-search-backward
"\e[B": history-search-forward
"\e[B": history-search-forward
</pre>
</pre>
Next logon you'll be able to search command by start to write them and use up/down arrows.
Next logon you'll be able to search command by start to write them and use up/down arrows.
<pre>"\e[1;5A": history-search-backward
<pre>
"\e[1;5A": history-search-backward
"\e[1;5B": history-search-forward
"\e[1;5B": history-search-forward
</pre>
</pre>