You're typing a long command, then before running it you remember you have to do some stuff first. Instead of Ctrl-C to cancel it, you push it to history in a disabled form.
Prepend the line with # to comment it, run the commented line so it gets added to history, do whatever it is you remembered, then up arrow to retrieve the first command.
$ long_command
<Home, #>
$ #long_command
<Enter>
$ stuff_1 $ stuff_2
<Up arrow a few times>
$ #long_command
<home, del>
$ long_command
A mistake 3 words earlier? No problem: <esc>3bcw and I'm good to go.
Want to delete the whole thing? Even easier: <esc>cc
I can even use <esc>v to open the command inside a fully-fledged (neo)vim instance for more complex rework.
If you use (neo)vim already, this is the best way to go as there are no new shortcuts to learn and memorize.
Be careful working CTRL + W into muscle memory though, I've lost count of how many browser tabs I've closed by accident...
This hurts.
Also, for the shell, if you do C+w, you can "paste" it back using C+y. Assuming you have not removed that configuration.
Yeah, pressing Ctrl-W accidentially is a pain sometimes ... but Ctrl-Shift-T in Firefox is a godsend.
He had in his path a script called `\#` that he used to comment out pipe elements like `mycmd1 | \# mycmd2 | mycmd3`. This was how the script was written:
```
#!/bin/sh
cat
```And not only cd. Gotta love 'git checkout -'
One thing I dislike about brace expansions is that they don't play nicely with tab completion. I'd rather have easy ways to e.g. duplicate the last token (including escaped/quoted spaces), and delete a filename suffix. And, while I'm on that topic, expand variables and `~` immediately (instead of after pressing enter).
As someone who works mostly in WSL and has to use PS occasionally, it really reduces the overhead of the context switch.
`| sudo tee file` when current user does not have permission to >file
The vi editing mode is always present in ksh, but is optional in dash. If present, the POSIX standard requires that "set -o vi" enable this mode, although other methods to enable it are not prohibited (such as inputrc for bash/readline), and as such is a "universal trick."
The article is relying on some Emacs mode, which is not POSIX.
$_ is not POSIX if I remember correctly.
History in vi mode is easier, just escape, then forward slash (or question mark) and the search term (regex?), then either "n" or "N" to search the direction or its reverse.
I've seen a lot of people who don't like vi mode, but its presence is the most deeply standardized.
> The Backspace Replacements
Also known as "emacs editing mode". Funnily enough, what POSIX mandates is the support for "vi editing mode" which, to my knowledge, almost nobody ever uses. But it's there in most shells, and you can enable it with "set -o vi" in e.g. bash.
Once you get used to it, it is painful to go back.
Simple, no need to learn any commandline these days.
I used to use arch and all, and managed many big projects. I find little value in learning new tools anymore, just feed it docs and it generated working plan most of the time
Now I've moved to coding in Haskell, which i find suits me better than wasting my time with cli and exploring what options all these cli tools have.
Also, increase your `$HISTSIZE` to more than you think you would need, there have been cases where it helped me find some obscure command I ran like 3 years before.
Quite a few useful ones
$ some_long_command -with -args -easily -forgotten # thatspecialthing
$ CTRL-R<specialthing>
$ some_long_command -with -args -easily -forgotten # thatspecialthing
$ history | grep "\#"
Makes for a definite return of sanity ..