11–20 of 54 posts
I never understood the utility of history substitution (I think this is what it's called). Why not just ctrl-r to see the actual command? Also, `sudo !!` thingy that is (was?) persistent in the internets for some reason, is probably the dumbest thing out there.
You need to enable magic-space: https://relentlesscoding.com/posts/bash-magic-space/ # this will automatically expand any variables and history when you hit the spacebar after them, so you can eyeball before running. Someone tell me what the zsh equivalent is?
Fortunately my memory was never good enough for me to use that facility. C-r is how I always lookup earlier commands.
I never understood the utility of history substitution (I think this is what it's called). Why not just ctrl-r to see the actual command? Also, `sudo !!` thingy that is (was?) persistent in the internets for some reason, is probably the dumbest thing out there.
`sudo !!` is just very useful, just as most other things you can do with history substitution. Ctrl-R has its own usefulness but it only does a fraction of what history substitution can do.
So you hit arrow up to bring up the last command, then [Alt]+[E] to sudo-ify it.
I don't use the terminal often, but when I do, the feeling of sheer power and control over the system is palpable. I'm a fast and nervous typer, so I always try to slow down and notice all the ways I could lose data, and how easy it would be to make such mistakes (eg. how many mistyped letters away from wiping my database am I?). Over time, I got better at noticing danger areas. Whenever I use 'rm', I re-read the com…
rm () {
mv "$@" ~/.trash
}
I never understood the utility of history substitution (I think this is what it's called). Why not just ctrl-r to see the actual command? Also, `sudo !!` thingy that is (was?) persistent in the internets for some reason, is probably the dumbest thing out there.
$!(some number) instead is quite insane and much more likely to have unwanted effects due to (potential) lack of context.
Don't conflate the two.
Fortunately my memory was never good enough for me to use that facility. C-r is how I always lookup earlier commands.
Fortunately my memory was never good enough for me to use that facility. C-r is how I always lookup earlier commands.
Fortunately my memory was never good enough for me to use that facility. C-r is how I always lookup earlier commands.
Can you navigate C-r history, or are you forced to see only the last command?