How to implement a shell script that records commands used after login

This article mainly introduces how to record the use of commands after logging in the shell script, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

The code is as follows:

# / bin/bash

# history

# paste the following code directly into / etc/profile

USER_IP= `who-u am i 2 > / dev/null | awk'{print $NF}'| sed-e's / [()] / / g``

HISTDIR=/var/log/.hist

If [- z $USER_IP]

Then

USER_IP= `hostname`

Fi

If [!-d $HISTDIR]

Then

Mkdir-p $HISTDIR

Chmod 777$ HISTDIR

Fi

If [!-d $HISTDIR/$ {LOGNAME}]

Then

Mkdir-p $HISTDIR/$ {LOGNAME}

Chmod 300$ HISTDIR/$ {LOGNAME}

Fi

Export HISTSIZE=4096

DT= `date +% Y% m% dice% H% M% S`

Export HISTFILE= "$HISTDIR/$ {LOGNAME} / ${USER_IP} .hist. $DT"

Chmod 600$ HISTDIR/$ {LOGNAME} / * .hist* 2 > / dev/null

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