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Top Forums UNIX for Dummies Questions & Answers Want to get list of Linux commands used on specific date through HISTORY command Post 302884054 by Scott on Friday 17th of January 2014 08:42:07 AM
Old 01-17-2014
Sorry, I deleted my previous post. On OS X the default behaviour of Bash is to store the epoch in the history file for each command run, which you can then use HISTTIMEFORMAT to format the output timestamp when using the history command. On Linux (RHEL) this is not the default and I can't quite find where to set it. But if it's not set already, you have no chance of getting the information you want from that time period.

If you see something like the following (#<number), you might be OK, providing your HISTSIZE is long enough and no one has truncated the history file since the date you want:
Code:
bash-3.2$ tail -2 $HISTFILE
#1389965423
cat .bash_history

 

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IP-MONITOR(8)							       Linux							     IP-MONITOR(8)

NAME
ip-monitor, rtmon - state monitoring SYNOPSIS
ip monitor [ all | LISTofOBJECTS ] DESCRIPTION
The ip utility can monitor the state of devices, addresses and routes continuously. This option has a slightly different format. Namely, the monitor command is the first in the command line and then the object list follows: ip monitor [ all | LISTofOBJECTS ] OBJECT-LIST is the list of object types that we want to monitor. It may contain link, address and route. If no file argument is given, ip opens RTNETLINK, listens on it and dumps state changes in the format described in previous sections. If a file name is given, it does not listen on RTNETLINK, but opens the file containing RTNETLINK messages saved in binary format and dumps them. Such a history file can be generated with the rtmon utility. This utility has a command line syntax similar to ip monitor. Ide- ally, rtmon should be started before the first network configuration command is issued. F.e. if you insert: rtmon file /var/log/rtmon.log in a startup script, you will be able to view the full history later. Certainly, it is possible to start rtmon at any time. It prepends the history with the state snapshot dumped at the moment of starting. SEE ALSO
ip(8) AUTHOR
Original Manpage by Michail Litvak <mci@owl.openwall.com> iproute2 20 Dec 2011 IP-MONITOR(8)
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