Packages are kept in /var/cache/pacman/pkg. Delete unused old packages with: 1sudo pacman -Sc Signatures are handled by the pacman-key, initially set up with: 1sudo pacman-key --populate archlinux And refreshed with: sudo pacman-key --refresh-keys If you have usigned keys, you can refresh with: 1sudo pacman -Sc or …

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FDisk Basics 1su root 2fdisk /dev/sda m for help. n to make a partition. t to mark the partition type (see IDs below). w to write the changes to the disk. Note the asterisk marking the boot partition. IDs ID Meaning 83 Linux 5 Extended 82 Swap fdisk will not help with a GPT formatted drive. For this, use gdisk, which …

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Setup gpg keys. Show your gpg secret it: 1gpg --list-secret-keys Then use the id number under sec to make a pass repo: 1KEY="$(gpg --list-secret-keys | grep -m 1 -A1 '^sec' | tail -n 1)" 1pass init $KEY To add a basic password, e.g. for $WEBSITE: 1pass $WEBSITE To insert a multiline password, e.g. with a login name: …

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You cannot erase pdf metadata with exiftool (it only appends your changes). To delete pdf metadata, you'll need gs. Make a text file called 'pdfmark.txt'. 1[ /Title () 2/Author () 3/Subject () 4/Creator () 5/ModDate () 6/Producer () 7/Keywords () 8/CreationDate () 9/DOCINFO pdfmark Then run: 1gs -o output.pdf …

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How to translate pdfs to text (results are very poor, and will need lots of corrections). Dependencies Search for 'tesseract english' (or whatever language). Arch: tesseract-data-eng and poppler-utils Script 1pdftoppm -png file.pdf test 1for x in *png; do 2 tesseract -l eng "$x" - >> out.txt 3done

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Installation Arch 1yay -S pi-hole-server 1sudo systemctl enable --now pihole-FTL 1sudo systemctl disable --now systemd-resolved 1sudo rm -f /dev/shm/FTL-* Debian Debian has a long, boring setup. 1sudo apt-get install wget curl net-tools gamin lighttpd lighttpd-mod-deflate 2curl -sSL https://install.pi-hole.net | …

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Cups: The Common Unix Printing System Configure cups at /etc/cups/supsd.conf, or visit the local webpage at http://localhost:631 if you want to use the Apple interface, otherwise, it's the printing daemon. The Printing Daemon The printing daemon automatically reads the cups configuration file. It prints with: lp …

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Proccesses See running items in current terminal with 1ps or more with 1ps -a Or the entire system with 1ps -e Or the entire system with more information, BSD style, with: 1ps aux And then search for a particular program with 1ps aux | grep cmus Jobs Pause a job with ^z. Put it in the background with the '&' suffix. …

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Setup (Commands) Sign up to an account somewhere. 1/connect bob@bobserver.org Check if someone wants to be your friend: 1/sub received Accept a friend's subscription request: 1/sub add alice@aliceserver.org Join a room: 1/join room1@bobserver.org Save your configuration so you don't have to do this again: 1/save Check …

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Make a QR Code image: 1qrencode 'https://play.google.com/store/apps/details?id=org.briarproject.briar.android' -o "$FILE".png Make a QR Coded message in the terminal: 1qrencode -t ansi "Hello World" Read a QR Code image: 1zbarimg $FILE Show wifi QR code (only with Network Manager): 1nmcli device wifi show-password

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