Merge branch 'dev' into vhs
This commit is contained in:
36
basics/column.md
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36
basics/column.md
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---
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title: "column"
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tags: [ "basics", "format", "json" ]
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---
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Put output into column.
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```bash
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du -h /etc/* | column
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```
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Reformat file with an explicit separator (`-s`):
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```bash
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column -ts: /etc/passwd
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```
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Give columns names (`-N`), so you can hide some (`-H`):
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```bash
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column -ts: -N User,PW,UID,GID,Description,Home,shell -H PW,GID /etc/passwd
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```
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Reorder with `-O` (unspecified items remain):
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```bash
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column -ts: -N User,PW,UID,GID,Description,Home,shell -H PW,GID -O User,Description,shell /etc/passwd
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```
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Output to json format with `-J`:
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```bash
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column -J -ts: -H PW,GID,shell -N User,PW,UID,GID,Description,Home,shell /etc/passwd
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```
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51
data/recfiles.md
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51
data/recfiles.md
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---
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title: "Recfiles"
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tags: [ "data", "database" ]
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---
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Create a database of board games:
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```bash
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database=games.rec
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touch $database
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entry="Name: Vojvodina"
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recins --record "$record" $database
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```
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Create, read, update, and delete:
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```bash
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for g in Saboter Carcassonne Chess; do
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recins -r "Name: $g" -r "Played: yes" $database
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done
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query=Carc
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recsel --quick=Carc $database
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recsel -q $query $database
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query=sabat
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recsel --case-insensitive -q "$query" --print=Name $database
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query=chess
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recsel -i -q "$query" -p Name $database
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new_field=Played
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value=no
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recset -f "$new_field" --set-add="$value" $database
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recsel $database
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value=yes
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recset -iq $query -f "$new_field" --set=$value $database
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recset -f "$new_field" --delete $database
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recsel $database
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```
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- [Extended example](recfiles/extended.md)
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# Resources
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- [Recfiles for gemini capsules](gemini://tilde.town/~dozens/gemlog/21.gmi)
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118
data/recfiles/extended.md
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118
data/recfiles/extended.md
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---
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title: "Recfiles Extended Example"
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tags: [ "data", "database", "recfiles" ]
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---
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## Create
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Make a database for your boardgames, specifying only one field and value:
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```bash
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database=games.rec
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n=Name
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g=Vojvodina
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touch $database
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recins -f $n --value $g $database
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recsel $database
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```
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Insert a few more, with the estimated playtime:
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```bash
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recins -f Name -v Saboter -f Playtime -v 30 $database
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recins -f Name -v Chess -f Playtime -v 30 $database
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```
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View all games, or select one by number:
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```bash
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recsel $database
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recsel -n 0 $database
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```
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Each game should note whether or not you have played it yet, so you can add that field and set the default to `yes`.
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```bash
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f=played
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v=yes
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recset -f $f -a $v $database
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```
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...but the field is wrong, it should have a capital letter:
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```bash
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new_field=Played
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recset -f $f --rename $new_field
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```
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## Read
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Check how many records the database has:
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```bash
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recinf $database
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```
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Look at just the games you've never played:
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```bash
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recsel --expression="Played = 'no'" $database
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```
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Print how many, then just print the names:
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```bash
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recsel -e "Played = 'no'" --count $database
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recsel -e "Played = 'no'" --print=Name $database
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```
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## Update
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To change a game's `Played` field from `no` to `yes`, use `recset` to specify the number, and change that field.
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```bash
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num=0
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f=Played
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value=yes
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recsel --number=$num $database
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recset --number=$num -f $f --set=$value $database
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```
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Find all games with a playtime of `30`, and set the field `Max_Players` to `4`.
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```bash
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recset -e "Playtime = 40" -f Max_Players --set 50 games.rec
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```
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This doesn't work, because that field does not exist.
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You can `--set-add` the field, to add it wherever it does not exist.
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```bash
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recset -e "Playtime = 40" -f Max_Players --set-add 50 games.rec
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```
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## Delete
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Remove `Played` record from first game:
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```bash
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num=0
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recset --number=$num -f Played --delete $database
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```
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You can comment the line instead of deleting it:
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```bash
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num=1
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recset --number=$num -f Played --delete $database
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recsel $database
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cat $database
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```
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Delete an entire record:
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```bash
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num=2
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recdel --number=$num $database
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```
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53
distros/arch/Maintenance.md
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53
distros/arch/Maintenance.md
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---
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title: "Maintenance"
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tags: [ "arch" ]
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---
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# Package Cache
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Clean the cache of old packages in `/var/cachepacman/pkg/`:
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```bash
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ls /var/cache/pacman/pkg/ | wc -l
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sudo pacman -Sc
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ls /var/cache/pacman/pkg/ | wc -l
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```
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And the same for `yay` (with `-Yc` to remove old dependencies):
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```bash
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ls ~/.cache/yay/ | wc -l
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yay -Sc
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yay -Yc
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ls ~/.cache/yay/ | wc -l
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```
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# New Configs
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If you chance a configuration file, such as `/etc/environment`, and `pacman` wants to update the file, it will place `/etc/environment.pacnew`.
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Check the new files, then look at the difference between the `pacman` version, and your version.
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```bash
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sudo find /etc/ /var/ /usr/ -name "*.pacnew"
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diff /etc/pacman.d/mirrorlist*
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```
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Either,
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- Update the files manually,
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```bash
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sudo -e /etc/pacman.d/mirrorlist
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sudo rm /etc/pacman.d/mirrorlist.pacnew
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```
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Or,
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- use a tool like `pacdiff` to view the changes next to each other, and select them with `vim`.
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```bash
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sudo pacman -S pacman-contrib
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sudo pacdiff
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```
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65
hardware/keyboard.md
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65
hardware/keyboard.md
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---
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title: "keyboard"
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tags: [ "Documentation", "keyboard", "vim" ]
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---
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# System-Wide Capslock and Escape Swap
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This works everywhere, including in a bare-ass tty.
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Select a keymap, and create a new custom map.
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```bash
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su root
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basemap=/usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz
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newmap=/usr/share/kbd/keymaps/custom.map.gz
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gunzip -c $basemap | \
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sed 's/Caps_Lock/\n/g;s/Escape/Caps_Lock/g;s/\n/Escape/g' | \
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gzip > $newmap
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```
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Tell the system to use this keymap at startup by naming it in the `rc.conf` file:
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```bash
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echo "KEYMAP=$newmap" >> /etc/rc.conf
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cat /etc/rc.conf
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reboot
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```
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# Set Layout with X Display
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Set layout to British English.
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```bash
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setxkbmap -layout gb
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```
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Or Polish with:
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```bash
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setxkbmap -layout pl
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```
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| Language | short |
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|:--------|:------|
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| Polish | pl |
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| Serbian | rs |
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Set 'alt + shift', as the command which cycles through the British English, Polish and Serbian keyboard layout.
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```bash
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setxkbmap -layout gb,pl,rs -option grp:alt_shift_toggle
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```
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## Alt_GR
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Remap, e.g., the right Windows key, to Alt_Gr.
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```
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key <RWIN> {[ ISO_Level3_Shift ]};
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```
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@@ -1,68 +0,0 @@
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---
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title: "keyboard"
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tags: [ "Documentation", "keyboard" ]
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---
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# Set Layout with X Display
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Set layout to British English.
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```bash
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setxkbmap -layout gb
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```
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Or Polish with:
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```bash
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setxkbmap -layout pl
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```
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| Language | short |
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|:--------|:------|
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| Polish | pl |
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| Serbian | rs |
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Set 'alt + shift', as the command which cycles through the British English, Polish and Serbian keyboard layout.
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```bash
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setxkbmap -layout gb,pl,rs -option grp:alt_shift_toggle
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```
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## Alt_GR
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Remap, e.g., the right Windows key, to Alt_Gr.
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```
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key <RWIN> {[ ISO_Level3_Shift ]};
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```
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# Set TTY Keymap
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Copy your keymap, e.g. if it's polish-1, then:
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```bash
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cp /usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz /usr/share/kbd/keymaps/*custom*.map.gz
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```
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Then change that map:
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```bash
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sudo vim /usr/share/kbd/keymaps/custom.map.gz
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```
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---
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You can switch Escape and Caps Lock with a single line:
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```bash
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sudo sh -c "gunzip -c /usr/share/kbd/keymaps/i386/qwerty/pl1.map.gz | sed 's/ Escape/ PLACEHOLDER/ ; s/Caps_Lock/Escape/g ; s/PLACEHOLDER/Caps_Lock/' | gzip > /usr/share/kbd/keymaps/custom.map.gz"
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```
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---
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Change the default keyboard mapping to the custom map:
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```bash
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echo 'KEYMAP="/usr/share/kbd/keymaps/*custom*.map.gz"' | sudo tee /etc/vconsole.conf
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```
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Reboot to have changes take effect.
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@@ -1,37 +0,0 @@
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☢ ☣ s ☠ ⚠
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radioactive sign biohazard sign skull and crossbones warning sign
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☤ ⚕ ⚚ †
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caduceus staff of aesculapius staff of hermes dagger
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☯ ⚖ ☮ ⚘
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yin yang scales peace flower
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⚔ ☭ ⚒ ⚓
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crossed swords hammer and sickle hammer and pick anchor
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⚛ ⚜ ⚡ ⚶
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atom symbol fleur-de-lis lightning vesta
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☥ ✠ ✙ ✞
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ankh cross cross cross
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✟ ✧ ⋆ ★
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cross diamond star star
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☆ ✪ ✫ ✬
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star star star star
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✭ ✮ ✯ ✰
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star star star star
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≪
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☸ ✵ ❂ ☘
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wheel of dharma star sun shamrock
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♡ ♥ ❤ ⚘
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heart heart big heart flower
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❀ ❃ ❁ ✼
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flower flower flower flower
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☀ ✌ ♫ ♪
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sun V sign music note / melody music note / melody
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☃ ❄ ❅ ❆
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snowman snowflake snowflake snowflake
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☕ ☂ ❦ ✈
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cofee umbrella floral heart / leaf airplane
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♕ ♛ ♖ ♜
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white king / crown black king / crown white rook / tower black rook / tower
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☁ ☾
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cloud waning crescent moon
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Reference in New Issue
Block a user