46 pwd [Note that there are three pwd commands in history, after executing pwd 3 times as shown above] 47 history | tail -4 # export HISTCONTROL=ignoredups # pwd # pwd # pwd # history | tail -3 56 export HISTCONTROL=ignoredups 57 pwd [Note that there is only one pwd command in t...
在下面的例子中，pwd 命令被连续执行了三次。执行 history 后你会看到三条重复的条目，要剔除这些重复的条目，你可以将 HISTCONTROL 设置为 ignoredups：# pwd# pwd# pwd# history | tail -444 pwd45 pwd46 pwd [Note that there are three pwd commands in history, after executing pwd 3 times as s...
46 pwd [Note that there are three pwd commands in history, after executing pwd 3 times as shown above] 47 history | tail -4 # export HISTCONTROL=ignoredups # pwd # pwd # pwd # history | tail -3 56 export HISTCONTROL=ignoredups 57 pwd [Note that there is only one pwd command in t...
In Linux, the history command is a utility that allows you to view a list of previously entered commands in the terminal. It is a useful utility to overlook the commands and then reuse them easily. While using too many terminal commands, Linux administrators recommend clearing the terminal’s ...
要剔除这些重复的条目,你可以将 HISTCONTROL 设置为 ignoredups:# pwd# pwd# pwd# history | tail -444 pwd45 pwd46 pwd [Note that there are three pwd commands in history, after executing pwd 3 times as shown above]47 history | tail -4# export HISTCONTROL=ignoredups# pwd# pwd# pwd# ...
46 pwd [Note that there are three pwd commands in history, after executing pwd 3 times as shown above] 47 history | tail -4 # export HISTCONTROL=ignoredups # pwd # pwd # pwd # history | tail -3 56 export HISTCONTROL=ignoredups ...
This command works the same as theHISTFILEmethod.However, we should execute it only after we’ve completed running all the commands we need. 5. Disabling and Enabling History In this section, we will make use of thesetcommand. We’ll switch on and then switch off the ability of the shell...
Environment Red Hat Enterprise Linux 5 bash-3.2-32.el5 Issue history command does not show commands in time order when HISTTIMEFORMAT is defined in /etc/profile .Resolution To get around this problem, have the below entry in /etc/bashrc file Raw PROMPT_COMMAND='history -a; history -r; ...
The HISTFILE variable holds the name and location of your Bash history file. HISTFILESIZE is how many commands can be stored in the.bash_historyfile. HISTSIZE is the number of cached commands. Once you reach 1000 commands, the oldest commands will be discarded as new ones are saved. ...
HSTR can alsomanageyour command history (for instance you can remove commands that are obsolete or contain a piece of sensitive information) orbookmarkyour favorite commands. Install: Build: Tarball: build and install tarball Check alsopackagesfor Linux and Unix. ...