All Questions
39 questions
0
votes
1
answer
380
views
Command line / prompt is broken, cannot edit (WSL2)
I'm using Windows 10 with WSL2. In all the terminals I have tried so far, I quickly encounter a broken command line. After pressing ENTER, the actual command appears differently, parts of the command ...
0
votes
0
answers
112
views
duplicated history entries at the same timestamp
For some time I had an issue with my history using GNU bash (version 4 and 5) where commands appeared in duplicates. I assumed this was due to the fact that in my .bashrc I had the following line:
...
- 406
1
vote
2
answers
296
views
View History Expansion On History
I am having to to rewrite history expansion commands, instead of calling it from history.
For Example, I have to change 35 to 36, 37, 38.... in the following command.
$ print -P '\033[35mThis is the ...
- 2,978
0
votes
1
answer
246
views
!! bash command
When we run !! in a shell session, it prints and run last executed command
I was wonder if it is an alias for another long-written bash built-in command and would like to know where it is defined
I ...
- 327
11
votes
8
answers
2k
views
How to Quickly Replace a Parameter in a Piped Command Chain
Question
Let's say I just entered this command to get a count of how many lines contain a particular string:
me@machine $ command-producing-multi-line-output | grep -i "needle" | wc -l
Now how could ...
- 142
1
vote
1
answer
1k
views
Bash prompt getting garbled when I browse history?
I have MacOS and .bash_profile content:
export PS1="\[\e[0;31m$\]\[\e[m\] \[\e[0;32m\w\e[m\] : \]"
as a result I have pwd printed in terminal like this:
but when I press up and down arrows to use ...
3
votes
2
answers
2k
views
How to import bash history with correct time&date from a history output?
I have a file with my bash history and want to "import" the commands on a new machine. The file contains a history output formatted as HISTTIMEFORMAT="%F%t%T%t":
$ history > history.txt
So the ...
- 217
1
vote
0
answers
722
views
Bash stdout and/or stderr history log [duplicate]
As you probably know, the bash shell's stdin is logged to $HISTFILE (i.e. usually ~/.history) and can be accessed with the history builtin, and so on.
But the stdout & stderr are not.
How can ...
- 1,312
20
votes
2
answers
1k
views
Does a shortcut for executing a series of commands in bash history exist?
Suppose I have the following trivial example in my history:
...
76 cd ~
77 ./generator.sh out.file
78 cp out.file ~/out/
79 ./out/cleaner.sh .
80 ls -alnh /out
...
If I wanted to execute commands 77, ...
- 1,657
9
votes
6
answers
7k
views
Repeat last command N times
Short of writing a loop, is there a way to repeat the last command N times.
For example, I can repeat the last command once by using a double bang (!!), but how do I repeat it say 30 times?
- 6,105
1
vote
2
answers
97
views
Is it better to use !! or history?
I've found out the useful shortcut !! which can be used
when you forget sudo before the command.
You'll easily type
$ sudo !!
I've been doing this another way for a long time with up arrow,
ctrl + ...
- 15k
20
votes
6
answers
1k
views
How do I input n repetitions of a digit in bash, interactively
I'd like to run the command
foo --bar=baz <16 zeroes>
How do I type the 16 zeroes efficiently*? If I hold Alt and press 1 6 0 it will repeat the next thing 160 times, which is not what I want. ...
- 517
2
votes
1
answer
660
views
Clear bash history except last n lines
I have following command to clear last entry of bash history(terminal history/command-line history). My Ubuntu 14.04 Trusty Tahr.
sed -i '$d' ~/.bash_history
But I want to keep last 1,2...n entries ...
- 259
2
votes
2
answers
9k
views
How do I record all terminal input and output to a local file by default for each session?
I'm aware the script command can be used to record all keyboard input and screen output to a file, but this has to be invoked each time a terminal session is started. I keep timestamped versions of my ...
- 2,585
2
votes
2
answers
257
views
Is there a shortcut to rerun a command with arguments from last command (not cd, ls or echo)
Searching through passed Logfile with something like this:
cat /path/to/logfile | grep -iEw 'some-ip-address-here|correspondig-mac-adress-here'
This gives me all the passed log lines until now so I ...
- 165