Reposted by Marco
🇩🇪 Today we celebrate #GermanUnityDay – a victory over oppression & mass surveillance.
But history warns us: #ChatControl could bring surveillance back at a scale East Germany could only have dreamed of.
Let’s defend freedom & say NO to #ChatControl! ✊
👉 tuta.com/blog/unity-d...
![4-panel comic. (1) [Black panel with white text boxes] TEXT BOX: And God said, "Let there be light," (2) [Sun radiating light.] TEXT BOX: And there was light. (3) [View of bright sun rising over Earth's horizo] (4) TEXT BOX: God saw that light was-- [Chat bubble from Earth] CHAT BUBBLE: Can you add support for dark mode?
Open xkcd.com to view toggles for different modes.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreigv4lnl5phqlsgrautsjkvbzclczdwkiditx4lkoipyqxmvnorwei)
![Comic. [Comment section on a video. 564 comments, including posts from three different avatars: “Who else is here in 2023?” “Is anyone else watching this in 2017?” “Anyone else here in 2025?”] [caption] For some reason, confused time travelers always try to find each other using YouTube comments.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreia42izz36bkhdteb5743objgf2s3whe3kblmnxnwjvgggtu66ea54)
![your shell lets you run many programs (“jobs”) in the same terminal tab
programs can either be:
foreground
background
stopped (which is more like “paused”)
& runs a program in the background
for example I like to convert 100 files in parallel like this:
for i in `seq 1 100`
do
convert $i.png $i.jpg &
done
jobs lists backgrounded & stopped jobs
$ jobs
[1] Running python blah.py &
[2] Stopped vim
use the numbers to bring them to the foreground or background (like fg %2), kill them (kill %2), or disown them
when you close a terminal tab all jobs are killed with a SIGHUP signal
you can stop this with disown or by starting the program with nohup: disown %1 (job number goes here) nohup my_program &
a trick to kill programs if Ctrl+C doesn’t work
press Ctrl+Z to stop the program
run kill %1 to kill it (or kill -9 %1 if you’re feeling extra murderous)
a little flowchart
Three boxes, labelled “running in foreground”, “stopped”, and “running in background”
Ctrl+Z goes from “running in foreground” to “stopped” fg goes from “stopped” to “running in foreground” fg goes from “running in background” to “running in foreground” bg goes from “stopped” to “running in background”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:nzrozayxq764zbgl4qtp5ald/bafkreigxoajfoayzbyucv22q6daqvpvcjlftkkhbeaajib5mbri3cwj5fq)
