mirror of
https://github.com/LCTT/TranslateProject.git
synced 2025-01-07 22:11:09 +08:00
97 lines
3.6 KiB
Markdown
97 lines
3.6 KiB
Markdown
Translating by Hymantin
|
||
Set Date and Time for Each Command You Execute in Bash History
|
||
============================================================
|
||
|
||
By default, all commands executed by Bash on the command line are stored in history buffer or recorded in a file called ~/.bash_history. This means that a system administrator can view a list of commands executed by users on the system or a user can view his/her command history using the [history command][1] like so.
|
||
|
||
```
|
||
$ history
|
||
```
|
||
[
|
||
|
||
][2]
|
||
|
||
Linux History Command
|
||
|
||
From the output of the [history command][3] above, the date and time when a command was executed is not shown. This is the default setting on most if not all Linux distributions.
|
||
|
||
In this article, we will explain how you can configure time stamp information when each command in the Bash history was executed to be displayed.
|
||
|
||
The date and time associated with each history entry can be written to the history file, marked with the history comment character by setting the HISTTIMEFORMAT variable.
|
||
|
||
There are two possible ways of doing this: one does it temporarily while the other makes it permanent.
|
||
|
||
To set HISTTIMEFORMAT variable temporarily, export it as below on the command line:
|
||
|
||
```
|
||
$ export HISTTIMEFORMAT='%F %T'
|
||
```
|
||
|
||
In the export command above, the time stamp format:
|
||
|
||
1. `%F` – expands to full date same, as %Y-%m-%d (year-month-date).
|
||
2. `%T` – expands to time; same as %H:%M:%S (hour:minute:seconds).
|
||
|
||
Read through the [date command][4] man page for additional usage information:
|
||
|
||
```
|
||
$ man date
|
||
```
|
||
|
||
Then check your command history as follows:
|
||
|
||
```
|
||
$ history
|
||
```
|
||
[
|
||
|
||
][5]
|
||
|
||
Display Linux Command History with Date and Time
|
||
|
||
However, if you want to configure this variable permanently, open the file `~/.bashrc` with your favorite editor:
|
||
|
||
```
|
||
$ vi ~/.bashrc
|
||
```
|
||
|
||
And add the line below in it (you mark it with a comment as your own configuration):
|
||
|
||
```
|
||
#my config
|
||
export HISTTIMEFORMAT='%F %T'
|
||
```
|
||
|
||
Save the file and exit, afterwards, run the command below to effect the changes made to the file:
|
||
|
||
```
|
||
$ source ~/.bashrc
|
||
```
|
||
|
||
That’s all! Do share with us any interesting history command tips and tricks or your thoughts about this guide via the comment section below.
|
||
|
||
--------------------------------------------------------------------------------
|
||
|
||
作者简介：
|
||
|
||
|
||
|
||
I am Ravi Saive, creator of TecMint. A Computer Geek and Linux Guru who loves to share tricks and tips on Internet. Most Of My Servers runs on Open Source Platform called Linux. Follow Me: Twitter, Facebook and Google+
|
||
|
||
--------------------------------------------------------------------------------
|
||
|
||
via: http://www.tecmint.com/display-linux-command-history-with-date-and-time/
|
||
|
||
作者：[Ravi Saive][a]
|
||
译者：[译者ID](https://github.com/译者ID)
|
||
校对：[校对者ID](https://github.com/校对者ID)
|
||
|
||
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
|
||
|
||
[a]:http://www.tecmint.com/author/admin/
|
||
[1]:http://www.tecmint.com/history-command-examples/
|
||
[2]:http://www.tecmint.com/wp-content/uploads/2017/01/Linux-History-Command.png
|
||
[3]:http://www.tecmint.com/history-command-examples/
|
||
[4]:http://www.tecmint.com/sort-ls-output-by-last-modified-date-and-time/
|
||
[5]:http://www.tecmint.com/wp-content/uploads/2017/01/Set-Date-and-Time-on-Linux-Commands-History.png
|