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Add timestamp to history command output in Linux

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[系统(linux) 所属分类 系统(linux) | 发布者 店小二05 | 时间 2016 | 作者 红领巾 ] 0人收藏点击收藏

My last post was about adding timestamp to terminal in linux. But isn’t it better to simply add timestamp to history command? This enables you to open your terminal anytime, run history command and find out when you ran which command, all without keeping terminal or putty windows open indefinitely. I guess it’s helpful in some cases. Here’s how to add timestamp to history command output in Linux:

Modify .bashrc file

We need to set HISTTIMEFORMAT environment variable. Add the following line to your .bashrc file.

export HISTTIMEFORMAT="%F-%T "
Add timestamp to history command output in Linux

Save the file and open a new terminal , type in history and voila.

[email protected]:~# history | tail -5
69 2016-10-11-21:33:48 vi .bashrc
70 2016-10-11-21:34:13 exit
71 2016-10-11-21:34:49 history | tail -5
72 2016-10-11-21:40:47 clear
[email protected]:~#

Pretty neat. You can go further by adding it in the skel or default so that it affects all new accounts that are created. You can use config managers such as Puppet or Spacewalk or Chef to deploy these little snippet so that all machines in the managed network has timestamp in history. Either way, this is a nice handy snippet for any Linux Administrator to have.

本文系统(linux)相关术语:linux系统 鸟哥的linux私房菜 linux命令大全 linux操作系统

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