Update cheatsheets

tldr/linux/blastn

@@ -18,7 +18,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Align two or more sequences, custom tabular output format, output to file:
 
-`blastn -query {{query.fa}} -subject {{subject.fa}} -outfmt {{'6 qseqid qlen qstart qend sseqid slen sstart send bitscore evalue pident'}} -out {{output.tsv}}`
+`blastn -query {{query.fa}} -subject {{subject.fa}} -outfmt '{{6 qseqid qlen qstart qend sseqid slen sstart send bitscore evalue pident}}' -out {{output.tsv}}`
 
 - Search nucleotide databases using a nucleotide query, 16 threads (CPUs) to use in the BLAST search, with a maximum number of 10 aligned sequences to keep:
 

tldr/linux/esearch

@@ -15,7 +15,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Search the protein database using a query and `regex`:
 
-`esearch -db {{protein}} -query {{'Escherichia*'}}`
+`esearch -db {{protein}} -query '{{Escherichia*}}'`
 
 - Search the nucleotide database for sequences whose metadata contain insulin and rodents:
 

tldr/linux/extundelete

@@ -9,7 +9,7 @@ source: https://github.com/tldr-pages/tldr.git
 > See also: `date` for Unix time information and `umount` for unmounting partitions.
 > More information: <https://extundelete.sourceforge.net/options.html>.
 
-- Restore all deleted files inside partition N on device X:
+- Restore all deleted files inside partition `N` on device `X`:
 
 `sudo extundelete {{/dev/sdXN}} --restore-all`
 

tldr/linux/handlr

@@ -22,7 +22,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Set MPV as the default application for all audio files:
 
-`handlr set {{'audio/*'}} {{mpv.desktop}}`
+`handlr set '{{audio/*}}' {{mpv.desktop}}`
 
 - List all default apps:
 

tldr/linux/head

@@ -8,6 +8,18 @@ source: https://github.com/tldr-pages/tldr.git
 > Output the first part of files.
 > More information: <https://www.gnu.org/software/coreutils/manual/html_node/head-invocation.html>.
 
+- Show first 10 lines in a file:
+
+`head {{path/to/file}}`
+
+- Show first 10 lines of multiple files:
+
+`head {{path/to/file1 path/to/file2 ...}}`
+
+- Output the first 5 lines of a file:
+
+`head {{[-5|--lines 5]}} {{path/to/file}}`
+
 - Output the first few lines of a file:
 
 `head {{[-n|--lines]}} {{count}} {{path/to/file}}`

tldr/linux/rename.util

@@ -28,7 +28,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Prepend "foo" to all filenames in the current directory:
 
-`rename {{''}} {{'foo'}} {{*}}`
+`rename '' '{{foo}}' {{*}}`
 
 - Rename a group of increasingly numbered files zero-padding the numbers up to 3 digits:
 

tldr/linux/semanage-fcontext

@@ -19,11 +19,11 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Add a user-defined rule that labels any path which matches a PCRE `regex`:
 
-`sudo semanage fcontext {{[-a|--add]}} {{[-t|--type]}} {{samba_share_t}} {{'/mnt/share(/.*)?'}}`
+`sudo semanage fcontext {{[-a|--add]}} {{[-t|--type]}} {{samba_share_t}} '{{/mnt/share(/.*)?}}'`
 
 - Delete a user-defined rule using its PCRE `regex`:
 
-`sudo semanage fcontext {{[-d|--delete]}} {{'/mnt/share(/.*)?'}}`
+`sudo semanage fcontext {{[-d|--delete]}} '{{/mnt/share(/.*)?}}'`
 
 - Relabel a directory recursively by applying the new rules:
 

tldr/linux/setxkbmap

@@ -14,7 +14,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Set multiple keyboard layouts, their variants and switching option:
 
-`setxkbmap -layout {{us,de}} -variant {{,qwerty}} -option {{'grp:alt_caps_toggle'}}`
+`setxkbmap -layout {{us,de}} -variant {{,qwerty}} -option '{{grp:alt_caps_toggle}}'`
 
 - List all layouts:
 

tldr/linux/systemctl-revert

@@ -0,0 +1,18 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# systemctl revert
+
+> Revert unit files to their vendor versions.
+> Undoes the effects of `edit`, `enable`, `disable`, `set-property`, and `mask`.
+> More information: <https://www.freedesktop.org/software/systemd/man/systemctl.html#revert%20UNIT%E2%80%A6>.
+
+- Revert unit files to their default settings:
+
+`systemctl revert {{unit1 unit2 ...}}`
+
+- Revert a user unit file:
+
+`systemctl revert {{unit}} --user`

tldr/linux/wev

@@ -0,0 +1,33 @@
+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# wev
+
+> Print contents of Wayland events.
+> More information: <https://manned.org/wev>.
+
+- Monitor all occurring Wayland events:
+
+`wev`
+
+- Print all events received by a specific Wayland interface:
+
+`wev -f {{wl_keyboard}}`
+
+- Print only specific events received by a Wayland interface:
+
+`wev -f {{wl_keyboard}}:{{key}}`
+
+- Print everything but the specified wayland events:
+
+`wev -F {{wl_keyboard}}:{{key}}`
+
+- Write the `wl_keyboards`'s keymap to a file:
+
+`wev -M {{path/to/file}}`
+
+- Print Wayland globals:
+
+`wev -g`

tldr/linux/xterm

@@ -26,4 +26,4 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Open the terminal using a Serif font and a font size equal to 20:
 
-`xterm -fa {{'Serif'}} -fs {{20}}`
+`xterm -fa '{{Serif}}' -fs {{20}}`