142
WDYM your terminal isn't a test suite? (lemmy.tf)
submitted 10 months ago by sabreW4K3@lemmy.tf to c/programmer_humor@programming.dev
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[-] andrew@lemmy.stuart.fun 16 points 10 months ago* (last edited 10 months ago)

I legitimately back up my history file. Mostly because it likes to truncate itself randomly (though this may have been fixed in zsh, or my config, because it's been a while). Just a systemd timer that triggers a shell script to copy it by date and rotate anything older than 100 copies.

Edit: WHY DID I SAY ANYTHING? After like 3 months of no problems, my history truncated itself to 3 entries a few minutes ago. I've only ever seen a few days of loss before that lol.

[-] jelloeater85@lemmy.world 7 points 10 months ago

Have you tried Atuin? It's amazing.

[-] andrew@lemmy.stuart.fun 3 points 10 months ago

I did try it for a bit. IIRC it slowed me down more than I cared for. Maybe worth trying again, though.

[-] caseyweederman@lemmy.ca 3 points 10 months ago

I'm annoyed when my thirteen bash instances don't share history, but I'd probably be a lot more annoyed if they did.

[-] andrew@lemmy.stuart.fun 2 points 10 months ago

That's one thing I like about zsh, or my config at least, because I use i3 and therefore tend to open lots of shells. History is mostly local until I hit return twice (two empty prompts) at which point I can get history from other sessions. It's stuck more global at that point though aside from future history.

[-] caseyweederman@lemmy.ca 1 points 10 months ago

Ooh. I like that. I'm gonna try that, thanks.

[-] sabreW4K3@lemmy.tf 2 points 10 months ago

Haha, my bad!

[-] andrew@lemmy.stuart.fun 2 points 10 months ago

Fortunately I have my hourly backups! 😅

[-] zemja@programming.dev 12 points 10 months ago

Can somebody please tell me what history -c is?

[-] survivalmachine@beehaw.org 9 points 10 months ago

history displays a list of all commands you have run on the terminal since the history list was last cleared. It is invaluable for referring back to a big complex command or set of commands you ran at some point in the past. The -c flag clears that history.

[-] zemja@programming.dev 11 points 10 months ago

Fuck, I just cleared my history.

[-] caseyweederman@lemmy.ca 5 points 10 months ago

What does it do again?

[-] umbrella@lemmy.ml 4 points 10 months ago

dont you also need history -w to save it?

on ubuntu -c doesnt actually clear it unless you also use -w

[-] survivalmachine@beehaw.org 1 points 10 months ago* (last edited 10 months ago)

Yes, my comment only applies to the shell history in memory. -c clears history immediately, but you can still reload it from disk if you haven't overwritten that with -w. If you tend to close your terminal windows frequently and rely on the history feature between sessions, it would benefit you to learn about the intricacies of the on-disk copy of history and how its affected by writes, appends, clears, crashes, etc. I tend to leave my terminal windows open a long time and copy any complex commands out to my PKM if I need to save them for future sessions, so I generally try not to rely on .bash_history, but it has saved my bacon on more than one occasion.

[-] akdas@lemmy.world 6 points 10 months ago* (last edited 10 months ago)

It lets you clear the bash command history, either completely or selectively. Here's the GNU docs for the history builtin: https://www.gnu.org/software/bash/manual/html_node/Bash-History-Builtins.html#index-history

(I'm not too familiar, someone else can clarify: is this available outside bash?)

What's interesting to me is the -a option, which lets you "flush" the history for the current session without ending the session. I can see that being useful!

[-] textik@sh.itjust.works 6 points 10 months ago

Don't fucking do this in zsh, it does NOT do the same thing that it does in bash.

[-] sabreW4K3@lemmy.tf 3 points 10 months ago

What does it do? 😳

[-] superbirra@lemmy.world 1 points 10 months ago

the same :)

[-] sabreW4K3@lemmy.tf 1 points 10 months ago

Hahahaha

[-] aCodeCrafter@lemmy.world 5 points 10 months ago

Welp, just did this to see what -c does...

Excuse me whilst I cry myself to sleep

[-] sabreW4K3@lemmy.tf 1 points 10 months ago

🥺

this post was submitted on 18 Jan 2024
142 points (100.0% liked)

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