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Questions tagged [history]

The history of Unix systems and their main components. Please DO NOT USE this tag for shell-related questions; use "command-history" instead.

-1 votes
3 answers
85 views

Do we need to memorize every command of Linux OS Terminal Shell? [closed]

This is a rare question that I can ask from the experts that every time I use a command for the Linux OS Terminal Shell. Do I need to memorize every command in the Command Line Interface (CLI) of ...
Bhavneet's user avatar
0 votes
1 answer
87 views

When and why was the single dash introduced for command line options?

Already in the 1980ies, ls -l did mostly what it does today. For a boolean option, in this case l, I hardly ever questioned why it is prefixed with a dash: without an indicator, ls l would mean "...
Harald's user avatar
  • 928
5 votes
0 answers
151 views

Why is a loop device called a "loop" device?

As far as I understand, a loop device is a regular file that acts as a block device. It's used for various things like isolation in snap packages and installing ISOs over an existing filesystem. But ...
raul's user avatar
  • 51
3 votes
1 answer
111 views

Will writing to /dev/pts allow me to source ~/.bashrc?

I have several terminal windows already open; I just made a change to ~/.bashrc, and I'd like to run source ~/.bashrc in each of the open terminals. It seems to me that if I just source ~/.bashrc | ...
Radoslav Ivanov's user avatar
4 votes
3 answers
426 views

How to place my own code snippets on command line à la history?

I have hundreds of tested and tried commands and snipets saved in various text files. When I need to re-use one, I find and copy/paste to the command line. Though reliable this is a clumsy method. ...
user167612's user avatar
  • 1,702
1 vote
1 answer
42 views

Why doesn't my sqlite3 history work after I run a dotnet core web app?

Over the past year or two I've been using sqlite3 a lot for web development projects. Invariably I would stumble upon a problem where suddenly, the history of commands would no longer work (when ...
raddevus's user avatar
  • 123
4 votes
2 answers
972 views

Does any implementation of `which` output "no" when executable cannot be found?

I am reading the source code of the Maven wrapper written for the Bourne shell. I came across these lines: if [ -z "$JAVA_HOME" ]; then javaExecutable="$(which javac)" if [ ...
Stefan van den Akker's user avatar
0 votes
1 answer
102 views

Who is the original author of GNU ld?

Author information can be difficult to find for projects whose histories go back long before their git repositories. According to Wikipedia, Richard Stallman wrote gcc, and Dean Elsner wrote GNU as. ...
clarkep's user avatar
  • 109
3 votes
1 answer
373 views

How to save the ssh commands history to a file

I'm going to allow a server administrator freelancer to access my server to do some tasks for me, so I want to save all the SSH commands that will be used in a file so I can access this file later and ...
Ahmed's user avatar
  • 133
0 votes
0 answers
46 views

Since when it is possible to open multiple DE/WM in different consoles?

I remember some time ago I couldn't start X in two consoles at the same time. What I mean, if I had i3 running on tty7, I could do Ctrl+Alt+F6 to go to tty6, I could log in, but I couldn't start ...
Enlico's user avatar
  • 1,677
0 votes
0 answers
21 views

Apper does not show the installation history anymore

I think the installation history of the GUI Apper is very useful: it shows a history of package installs and removals with timestamps and I think it should also show installations made via the command-...
mYnDstrEAm's user avatar
  • 4,398
0 votes
2 answers
74 views

Linux/Debian History: what Debian version became able to download and install packages from the Internet (with apt commands)?

For my Linux culture: what was the first version of Debian to become able to install packages from the Internet by the mean of the apt commands?
Marc Le Bihan's user avatar
0 votes
0 answers
110 views

ZSH not showing/keeping history even though I have the various history settings

I have the following in my .zshrc: # history HISTSIZE=50000 SAVEHIST=100000 HISTFILE=~/.cache/zsh/.histfile # plugins plugins=(git zsh-autosuggestions zsh-syntax-highlighting) # user configuration ...
J86's user avatar
  • 393
-4 votes
1 answer
575 views

Is there a way to know who executed a command?

we are using redhat and we would to know if there is a way to show the session id or username who executes a rm command line, recently, someone from other teams delete a .jar file and me and my team ...
Think Different's user avatar
0 votes
1 answer
337 views

Why is debug flag in GCC abbreviated "g"?

In GCC the debug flag is "-g". I have not been able to find why "g" was chosen for this. Does anyone know?
BipedalJoe's user avatar

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