recall commands previously typed in a shell or other utility

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0
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0answers
13 views

Persistence Bash history between detached processes

I haven't yet been able to find this among the bash documentation so I was hoping it could get answered if I asked it here. Is there any way that I can, on execution of a script, branch its history ...
0
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1answer
20 views

KSH on old unix systemV: search history

I have set a good ksh environement on old unix PATH=$PATH:/usr/lib/acct:/usr/sbin:/sbin:/usr/ucb export PATH EDITOR=vi FCEDIT=vi export EDITOR export FCEDIT HOSTNAME=`uname -n` HISTSIZE=500 ...
3
votes
1answer
50 views

Is it possible to show the current history line number when performing reverse search in bash?

Pressing Ctrl+R and typing py results in: (reverse-i-search) `py´: python I would like it to be this way: (reverse-i-search) `py´: n python where n is the history line number. I did not find an ...
4
votes
1answer
52 views

What can cause an item to be deleted from my bash history?

About once a day, I'll run into an issue when I search for a history item in bash. Manipulating that item sometimes deletes the history entry, and sometimes doesn't. Here is one case of this ...
4
votes
4answers
410 views

How to capture command line input into logfile and execute it at the same time?

Let's say I issue some commands on the command line: #capture what follows $ echo "foo" foo # don't capture $ echo "bing" bing # capture again $ echo "bar" bar How can I log commands selectively ...
9
votes
2answers
259 views

How to access the second argument from the last command in the history ?

I am starting to learn some Regex, therefore I use this command repeatedly: grep pattern /usr/share/dict/american-english Only the part with pattern changes, so I have to write the long expression ...
2
votes
4answers
271 views

Is there a way to show the history of the commands used in the shell?

If my Linux installation has three registered user accounts, is possible to check the history of the commands introduced by each one, and how?
2
votes
1answer
33 views

How can I use !! in zsh alias

I am trying to create an alias that builds upon my previous command. Say I run ag foo After looking at the list I want to be able to use those results in vim so I do vim -q<(!! --vimgrep) The ...
0
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0answers
42 views

How to implement command history in Linux terminal?

I am using Putty as Terminal to connect a Linux server running Oracle Linux. To use a command multiple times, I have to type that command each time. There is no function of Up and Down button unlike ...
3
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0answers
47 views

Bash: “history number” vs “command number”

While Googling how to customize my shell prompt via the PS1 variable, I'm seeing tables of special characters that can be used. In particular: \! the history number of this command ...
1
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0answers
26 views

Is there a way to share vim command history? [migrated]

By that I mean what people do in bash this way: export PROMPT_COMMAND="history -a; history -c; history -r; $PROMPT_COMMAND" That is, when I run a command echo test1 in one shell, and then press Up ...
0
votes
1answer
26 views

append file with history line number values

Is there a way to append my_computer.sh with the command on line 330 by only referencing the line number? or with the fewest keystrokes possible? 326 pip install -U pip 327 man pip 328 cat ...
1
vote
1answer
66 views

cat .bash_history | grep ./configure [closed]

Why does this not give any output: cat .bash_history | grep ./configure on an system/in an shell where ./configure has been run multiple times. And if I use the arrow key's to scroll the history in ...
170
votes
11answers
48k views

Preserve bash history in multiple terminal windows

I consistently have more than one terminal open. Anywhere from two to ten, doing various bits and bobs. Now let's say I restart and open up another set of terminals. Some remember certain things, some ...
1
vote
2answers
59 views

How do I prevent just 'exit' from being saved when I close an SSH connection?

When searching for a way to do this on Google, all I can find are ways to quit the session without saving history (like kill -9 $$), but I have the opposite problem. I want to save all of my history, ...
2
votes
1answer
46 views

How to protect against purge of bash history?

Following the answer: When closing multiple bash instances at the same time, there is a known race condition that may cause the history to be cleared. This occurs because there is no locking ...
26
votes
3answers
19k views

How to remove a single line from history?

I'm working in Mac OSX, so I guess I'm using bash...? Sometimes I enter something that I don't want to be remembered in the history. How do I remove it?
1
vote
1answer
52 views

Removing passwords from terminal logs in CentOS 7

Sometimes a user gives a typo when they are trying to give a password after typing a sensitive command, such as su - . The user then will assume they are being given another password request, and ...
1
vote
1answer
22 views

After removing the history file, why do I still have older commands in the history?

In a ssh session every time that I open it I assign a value to a variable. Then I remove history with command rm -f .sh_history. Everything is ok but why if I have other session opened and I do an ...
10
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2answers
5k views

Why would anyone not set 'histappend' in bash?

After finding out what this shopt -s histappend means, it seems a very sane setting, and I'm surprised that it isn't default. Why would anyone want to wipe their history on each shell exit?
2
votes
1answer
34 views

How to merge duplicated history of command on terminal?

Do you have an experience like this? When you try to find a previos used command on terminal by up arrow and you find $ls # 1st time push `up arrow` $ls # 2nd time push `up arrow` ...
7
votes
3answers
12k views

Can I search bash history across all users on a server?

I want to see all bash commands that have been run on a Linux server across multiple user accounts. The specific distribution I'm using is CentOS 5.7. Is there a way to globally search .bash_history ...
1
vote
2answers
131 views

how to record all who that login to my linux machines and records them

I installed the package audit on my linux red-hat 6.x machine in order to view the recored of each user that log to my linux machine yum install audit kit installation from: ...
2
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2answers
95 views

Export Command History into a Shell Script

Often I have complicated installation procedures to follow, like having to build dependencies for buildtools, to build dependencies for the application I wish to install from source. Once I have done ...
13
votes
1answer
6k views

Command history in Zsh

How does Zsh keep track of command history? I see two files in my home directory: .zhistory and .zsh_history. What is the difference between them? The files seem to contain all of my history. Does ...
5
votes
1answer
118 views

How to stop bash editing the history when I reuse and modify an entry?

Some instances of bash change the command history when you re-use and edit a previous command, others apparently don't. I've been searching and searching but can't find anything that says how to ...
1
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2answers
88 views

How do I get command name of the last executed command?

Example: I type man ls, than I want to get man only. By using !! I can get man ls but how do I get man?
12
votes
4answers
4k views

How can I remove duplicates in my .bash_history, preserving order?

I really enjoying using control+r to recursively search my command history. I've found a few good options I like to use with it: # ignore duplicate commands, ignore commands starting with a space ...
2
votes
3answers
357 views

Copy command from history to bash prompt

Sometimes I'd like to get some command from history output, copy it to bash prompt, make some changes and run it. Is there a way to copy command from a history output to bash prompt without involving ...
8
votes
3answers
3k views

How to delete commands in history matching a given string?

I need to delete all commands in my history matching a string. I've tried: $ history | grep searchstring | cut -d" " -f2 | history -d -bash: history: -d: option requires an argument $ history | grep ...
-1
votes
1answer
156 views

How does this bash alias to repeat the last command as sudo work? [duplicate]

I recently came across this ingenious bash alias to repeat the last issued command, but as sudo. This could be done by using sudo !! directly in the terminal after the failed command. The alias I ...
1
vote
2answers
48 views

Why does my .bash_history contain duplicate segments? [duplicate]

Since I keep my bash history under source control, I've noticed that sometimes sizable segments of the history end up repeated, sometimes hours or days after their original execution. I use Debian 7.7 ...
16
votes
1answer
445 views

Why is bash not storing commands that start with spaces?

If I perform a sequence of commands like: $ ls $ grep abc file.txt and then use the up arrow key to get the previous one, the terminal will show the last cmd (which is the grep here) But if I do ...
12
votes
1answer
3k views

How to enable reverse search in zsh?

I recently switched to zsh (finally) and am loving it! So far one thing that I am missing is Ctrl+R to do incremental history search. I have the history set up properly HISTSIZE=10000 SAVEHIST=10000 ...
1
vote
1answer
82 views

View a command in the shell history [closed]

If we put a space before any command in the shell it will not shown in history. Is there any way to see that command if the user enters a space before any command?
2
votes
1answer
48 views

HISTTIMEFORMAT syntax

There are many bash guides that include adding lines such as HISTTIMEFORMAT='%d/%m/%y %T ' or HISTTIMEFORMAT="%F %T " to ~/.bashrc or /etc/bash.bashrc. There's always a space before the final quote. ...
0
votes
0answers
38 views

Bash ignore “update” command

I have this in my .bashrc export HISTTIMEFORMAT="%Y/%m/%d - %H:%M:%S - " export HISTIGNORE="&:[ ]*:reload:update" export HISTCONTROL=ignoreboth:erasedups shopt -s autocd shopt -s cmdhist shopt ...
3
votes
1answer
187 views

Search Alt+F2 history in Cinnamon desktop environment

I wonder if there's some way to search the Alt+F2 "runner" history most preferably within the dialog itself. I know that in Cinnamon the values are available in dconf-editor under org.cinnamon ...
4
votes
3answers
817 views

“history” stops working when run inside bash script

I am writing a simple script to grep my bash history to find a particular string. On the command line, I can do the following, which works fine: history | grep git However, when I create a bash ...
8
votes
4answers
3k views

How can I save the last command to a file?

When I am running my analyses using the bash shell, I often want to save the commands I've used that gave me good results to a file in the same directory (my "LOGBOOK", as its called) so that I can ...
1
vote
2answers
90 views

bash history for current session

Maybe I'm overlooking something but is there a way to get your current bash history for the current session you are using like if i run ssh host $ pwd $ ls $ cd /tmp I just want to see those 3 ...
0
votes
1answer
72 views

What does “dd” stand for? [duplicate]

What does dd stand for? I've always referred to it colloquially as "Disk Destroyer", but what are the "official" words that make up the acronym/command? According to this link and this link it could ...
0
votes
1answer
49 views

.bash_history keeps truncating

My .bash_history keeps truncating even though I set: export HISTSIZE= export HISTFILESIZE= On my .bash_profile. Im not sure when it happens but it might happen when I logout or shut down my ...
0
votes
1answer
74 views

How to list down all useless or less used files or application in my linux server?

I want to clean cruft from my Oracle Linux server. For this, I need to know which application or directory isn't used or is hardly ever accessed. Is there any command or way to list directories or ...
1
vote
3answers
671 views

Different “history” command output after reconnecting via SSH

Why do I get different results for the "history" command for the same user after I reconnect a disconnected SSH session? I connect to a server using putty (SSH), say as root My network gets ...
2
votes
1answer
161 views

Never clear .bash_history (HISTFILE)

Is there any command that I could use that makes .bash_history never clear itself? After a certain amount of commands it just clear itself. I think this works but I'm not sure? ...
1
vote
1answer
290 views

How to check the time at which the command was executed?

When history command is executed, it shows a list of recently executed commands. Is there any provision with which we can see the time at which those particular commands were executed?
16
votes
2answers
5k views

How to execute consecutive commands from history?

Suppose I want to execute a sequence of four commands that I have executed before. If the first one is 432 in the command-history, then I could do: $ !432; !433; !434; !435 I'm curious, is there a ...
2
votes
2answers
1k views

Extending history search in zsh

How to extend Ctrl+R search in zsh? It cannot find entry despite it is in history file. Edit: My .zshrc: setopt AUTO_CD setopt CORRECT_ALL setopt EXTENDED_GLOB # History SAVEHIST=10000 ...
1
vote
1answer
29 views

Partially duplicated history when setting PS1 in .bash_profile [duplicate]

When I set PS1 variable in ~/.bash_profile, it worked as configured. However, the history is somehow messed up. When I press Arrow Up or Ctrl+P to view commands I typed, it starts to duplicate ...