Update cheatsheets

tldr/linux/keyd

@@ -14,7 +14,7 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Display keypress information:
 
-`sudo keyd monitor`
+`sudo keyd {{[-m|monitor]}}`
 
 - Reset bindings and reload the configuration files in `/etc/keyd`:
 
@@ -24,6 +24,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `keyd list-keys`
 
+- Check the detected configuration files for errors:
+
+`keyd check`
+
 - Create a temporary binding:
 
 `sudo keyd bind "{{pressed_key}} = {{output_key}}"`

tldr/linux/lsblk

@@ -36,6 +36,6 @@ source: https://github.com/tldr-pages/tldr.git
 
 `lsblk {{[-e|--exclude]}} {{1,7,...}}`
 
-- Display a customized summary using a comma-separated list of columns:
+- Add extra information to the output using a comma-separated list of columns (omit the `+` sign to only display the specified columns):
 
-`lsblk {{[-o|--output]}} {{NAME,ROTA,SERIAL,MODEL,TRAN,TYPE,SIZE,FSTYPE,MOUNTPOINT,...}}`
+`lsblk {{[-o|--output]}} +{{NAME,ROTA,SERIAL,MODEL,TRAN,TYPE,SIZE,FSTYPE,MOUNTPOINT,...}}`

tldr/linux/quickemu

@@ -6,6 +6,7 @@ source: https://github.com/tldr-pages/tldr.git
 # quickemu
 
 > Build and manage highly optimised desktop virtual machines quickly.
+> Note: Virtual machine must be in stopped state when working with snapshots.
 > See also: `quickget` for preparing VM configurations.
 > More information: <https://github.com/quickemu-project/quickemu>.
 
@@ -33,6 +34,10 @@ source: https://github.com/tldr-pages/tldr.git
 
 `quickemu --snapshot apply {{tag}} --vm {{path/to/file.conf}}`
 
+- List available snapshots:
+
+`quickemu --snapshot info --vm {{path/to/file.conf}}`
+
 - Delete a snapshot:
 
 `quickemu --snapshot delete {{tag}} --vm {{path/to/file.conf}}`

tldr/linux/sed

@@ -9,34 +9,34 @@ source: https://github.com/tldr-pages/tldr.git
 > See also: `awk`, `ed`.
 > More information: <https://www.gnu.org/software/sed/manual/sed.html>.
 
-- Replace "apple" with "mango" on all lines using basic `regex`, print to `stdout`:
+- [s]ubstitute all occurrences of "apple" with "mango" on all lines, print to `stdout`:
 
 `{{command}} | sed 's/apple/mango/g'`
 
-- Replace "apple" with "APPLE" on all lines using extended `regex`, print to `stdout`:
+- Replace "apple" with "mango" in-place in a file (overwriting original file):
 
-`{{command}} | sed {{[-E|--regexp-extended]}} 's/(apple)/\U\1/g'`
+`sed {{[-i|--in-place]}} 's/apple/mango/g' {{path/to/file}}`
 
-- Use basic `regex` to replace "apple" with "mango" and "orange" with "lime" in-place in a file (overwriting original file):
+- Run multiple substitutions in one command:
 
-`sed {{[-i|--in-place]}} -e 's/apple/mango/g' -e 's/orange/lime/g' {{path/to/file}}`
+`{{command}} | sed -e '{{s/apple/mango/g}}' -e '{{s/orange/lime/g}}'`
 
-- Execute a specific `sed` script file and print the result to `stdout`:
+- Use a custom delimiter (useful when the pattern contains slashes):
 
-`{{command}} | sed {{[-f|--file]}} {{path/to/script.sed}}`
-
-- [p]rint only the first line to `stdout`:
-
-`{{command}} | sed {{[-n|--quiet]}} '1p'`
+`{{command}} | sed '{{s#////#____#g}}'`
 
 - [d]elete lines 1 to 5 of a file and back up the original file with a `.orig` extension:
 
 `sed {{[-i|--in-place=]}}{{.orig}} '1,5d' {{path/to/file}}`
 
-- [i]nsert a new line at the beginning of a file, overwriting the original file in-place:
+- [p]rint only the first line to `stdout`:
+
+`{{command}} | sed {{[-n|--quiet]}} '1p'`
+
+- [i]nsert a new line at the beginning of a file, overwriting the original file:
 
 `sed {{[-i|--in-place]}} '1i\your new line text\' {{path/to/file}}`
 
-- Delete blank lines (with or without spaces/tabs) from a file, overwriting the original file in-place:
+- Delete blank lines (with or without spaces/tabs) from a file, overwriting the original file:
 
 `sed {{[-i|--in-place]}} '/^[[:space:]]*$/d' {{path/to/file}}`

tldr/linux/whatis

@@ -15,16 +15,16 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Don't cut the description off at the end of the line:
 
-`whatis --long {{command}}`
+`whatis {{[-l|--long]}} {{command}}`
 
 - Display descriptions for all commands matching a glob:
 
-`whatis --wildcard {{net*}}`
+`whatis {{[-w|--wildcard]}} {{net*}}`
 
 - Search man page descriptions with a `regex`:
 
-`whatis --regex '{{wish[0-9]\.[0-9]}}'`
+`whatis {{[-r|--regex]}} '{{wish[0-9]\.[0-9]}}'`
 
 - Display descriptions in a specific language:
 
-`whatis --locale={{en}} {{command}}`
+`whatis {{[-L|--locale]}} {{en}} {{command}}`

tldr/linux/xdg-settings

@@ -10,15 +10,15 @@ source: https://github.com/tldr-pages/tldr.git
 
 - Print the default web browser:
 
-`xdg-settings get {{default-web-browser}}`
+`xdg-settings get default-web-browser`
 
 - Set the default web browser to Firefox:
 
-`xdg-settings set {{default-web-browser}} {{firefox.desktop}}`
+`xdg-settings set default-web-browser {{firefox.desktop}}`
 
 - Set the default mail URL scheme handler to Evolution:
 
-`xdg-settings set {{default-url-scheme-handler}} {{mailto}} {{evolution.desktop}}`
+`xdg-settings set default-url-scheme-handler mailto {{evolution.desktop}}`
 
 - Set the default PDF document viewer: