The make system wants to know: What file you want to make, Which other files it depends on, and How to build the file. Start with a basic test-area. 1mkdir make_test ; cd $_ 2printf "%s:\n" README.md > Makefile 3printf "\t%s\n" 'echo "Basic makefile example." > $@' >> Makefile 4make NB: Always tell make how to build …

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Make a script for your regular shell commands. 1name=look 2echo '#!/bin/sh > ${name}.sh 3echo 'echo "This script is called $0"' 4chmod u+x !$ 5./!$ Notice the single-quotes, not double quotes.

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Check which groups you are in, and which are available: 1groups 2cat /etc/group 3column -ts: /etc/group 4grep $USER !$ Remove yourself from all groups, and add yourself back to only mail, audio, and your own group: 1sudo usermod --groups mail,audio,$USER Add yourself to the docker group, if there is one: 1grep docker …

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Find the path to a domain: 1domain=bad.horse 2max_hops=50 3 4tracepath -m $maximum_hops $domain If you're on Debian, you can use graph-easy and dothost to make an instant diagram: 1domain=dice.camp 2dothost $domain | graph-easy --boxart

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Turn a markdown file into a pdf: 1lowdown -stms "$FILE".md | pdfroff -itk -mspdf > "$FILE".pdf To give the document a title, put that title in the metadata: 1sed -i "1i---" "$FILE".md 2sed -i "1ititle: $TITLE" $FILE.md 3sed -i "1i---" "$FILE".md 4lowdown -L "$FILE".md 5lowdown -X title "$FILE".md 6lowdown -stms …

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RAID5 You will need 4 disks and the mdadm package. The total size will be equal to the disks x 3, because one will be used for redundancy. 1sudo mdadm --create --verbose /dev/md127 --level=5 --raid-devices=4 /dev/sdb /dev/sdc /dev/sdd /dev/sde Note the variable parts: The name of the device could be /dev/md12 or …

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Print the average CPU load over 1 minute, 5 minutes, and 15 minutes: 1watch -d cat /proc/loadavg 2stress="$(cat /proc/loadavg | awk '{print "Usage:" $2"%"}')" Show memory usage in Gibitytes. 1free -g Show low and high gigibtye usage on a line, and repeat the measurement every 5 seconds: 1REP=5 2free --lohi -g -s $REP | …

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Requirements GPG Basics Store passwords Share the Directory on Windows Open File Explorer. Right click on the directory you want to share. Click 'Show more options'. Click 'Give access to' -> 'Specific people...' On the drop-down menu, find 'Everyone'. (Optional) change 'Read' to 'Read/Write'. Click 'Share'. Check the …

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Requirements pipewire Setup Configuration This is a minimum configuration file for /etc/mpd.conf music_directory "/var/lib/mpd/music" playlist_directory "/var/lib/mpd/playlists" db_file "/var/lib/mpd/mpd.db" pid_file "/run/mpd/mpd.pid" state_file "/var/lib/mpd/mpdstate" user "mpd" audio_output { type "pulse" name "My …

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Requirements Remote Desktop between Sway ssh Check the host is using only one display: 1test "$WAYLAND_DISPLAY" = "wayland-1" Start a new sway session, and a wayvnc session: 1WLR_BACKENDS=headless WLR_LIBINPUT_NO_DEVICES=1 sway & 2WAYLAND_DISPLAY=wayland-2 wayvnc On the client, connect as usual.

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