linux/c*: add option placeholders (#16995)

pages/linux/caffeine.md

@@ -9,8 +9,8 @@
 
 - Display help:
 
-`caffeine --help`
+`caffeine {{[-h|--help]}}`
 
 - Display version:
 
-`caffeine --version`
+`caffeine {{[-V|--version]}}`

pages/linux/caja.md

@@ -14,12 +14,12 @@
 
 - Open specific directories in tabs:
 
-`caja --tabs {{path/to/directory1 path/to/directory2 ...}}`
+`caja {{[-t|--tabs]}} {{path/to/directory1 path/to/directory2 ...}}`
 
 - Open a directory with a specific window size:
 
-`caja --geometry={{600}}x{{400}} {{path/to/directory}}`
+`caja {{[-g|--geometry]}} {{600}}x{{400}} {{path/to/directory}}`
 
 - Close all windows:
 
-`caja --quit`
+`caja {{[-q|--quit]}}`

pages/linux/calcurse.md

@@ -1,7 +1,7 @@
 # calcurse
 
 > A text-based calendar and scheduling application for the command-line.
-> More information: <https://calcurse.org>.
+> More information: <https://github.com/lfos/calcurse/blob/pu/doc/calcurse.1.txt>.
 
 - Start `calcurse` on interactive mode:
 
@@ -9,7 +9,7 @@
 
 - Print the appointments and events for the current day and exit:
 
-`calcurse --appointment`
+`calcurse {{[-a|--appointment]}}`
 
 - Remove all local calcurse items and import remote objects:
 

pages/linux/cbatticon.md

@@ -9,19 +9,19 @@
 
 - Show the battery icon and set the update interval to 20 seconds:
 
-`cbatticon --update-interval {{20}}`
+`cbatticon {{[-u|--update-interval]}} {{20}}`
 
 - List available icon types:
 
-`cbatticon --list-icon-types`
+`cbatticon {{[-t|--list-icon-types]}}`
 
 - Show the battery icon with a specific icon type:
 
-`cbatticon --icon-type {{standard|notification|symbolic}}`
+`cbatticon {{[-i|--icon-type]}} {{standard|notification|symbolic}}`
 
 - List available power supplies:
 
-`cbatticon --list-power-supplies`
+`cbatticon {{[-p|--list-power-supplies]}}`
 
 - Show the battery icon for a specific battery:
 
@@ -29,4 +29,4 @@
 
 - Show the battery icon and which command to execute when the battery level reaches the set critical level:
 
-`cbatticon --critical-level {{5}} --command-critical-level {{poweroff}}`
+`cbatticon {{[-r|--critical-level]}} {{5}} {{[-c|--command-critical-level]}} {{poweroff}}`

pages/linux/cgclassify.md

@@ -3,7 +3,7 @@
 > Move running tasks to `cgroups`.
 > More information: <https://manned.org/cgclassify>.
 
-- Move the process with a specific PID to the control group student in the CPU hierarchy:
+- Move the process with a specific PID to the control [g]roup student in the CPU hierarchy:
 
 `cgclassify -g {{cpu:student}} {{1234}}`
 
@@ -11,6 +11,6 @@
 
 `cgclassify {{1234}}`
 
-- Move the process with a specific PID to the control group student in the CPU hierarchy. Note: The daemon of the service `cgred` does not change `cgroups` of the specific PID and its children (based on `/etc/cgrules.conf`):
+- Move the process with a specific PID to the control [g]roup student in the CPU hierarchy. Note: The daemon of the service `cgred` does not change `cgroups` of the specific PID and its children (based on `/etc/cgrules.conf`):
 
 `cgclassify --sticky -g {{cpu:/student}} {{1234}}`

pages/linux/cgcreate.md

@@ -4,11 +4,11 @@
 > `cgroups` types can be `memory`, `cpu`, `net_cls`, etc.
 > More information: <https://manned.org/cgcreate>.
 
-- Create a new group:
+- Create a new [g]roup:
 
 `cgcreate -g {{group_type}}:{{group_name}}`
 
-- Create a new group with multiple cgroup types:
+- Create a new [g]roup with multiple cgroup types:
 
 `cgcreate -g {{group_type1}},{{group_type2}}:{{group_name}}`
 

pages/linux/cgexec.md

@@ -4,6 +4,6 @@
 > Multiple cgroup types (aka controllers) exist, such as `cpu`, `memory`, etc.
 > More information: <https://manned.org/cgexec>.
 
-- Execute a process in a given cgroup with given controller:
+- Execute a process in a given c[g]roup with given controller:
 
 `cgexec -g {{controller}}:{{cgroup_name}} {{process_name}}`

pages/linux/chattr.md

@@ -3,7 +3,7 @@
 > Change attributes of files or directories.
 > More information: <https://manned.org/chattr>.
 
-- Make a file or directory immutable to changes and deletion, even by superuser:
+- Make a file or directory [i]mmutable to changes and deletion, even by superuser:
 
 `chattr +i {{path/to/file_or_directory}}`
 
@@ -11,7 +11,7 @@
 
 `chattr -i {{path/to/file_or_directory}}`
 
-- Recursively make an entire directory and contents immutable:
+- [R]ecursively make an entire directory and contents immutable:
 
 `chattr -R +i {{path/to/directory}}`
 
@@ -19,6 +19,6 @@
 
 `chattr +F {{path/to/directory}}`
 
-- Set a file to only allow appending:
+- Set a file to only allow [a]ppending:
 
 `chattr +a {{path/to/file}}`

pages/linux/check-dfsg-status.md

@@ -2,7 +2,7 @@
 
 > Report non-free packages installed on Debian-based OSes.
 > This command was formerly known as `vrms`.
-> More information: <https://debian.pages.debian.net/check-dfsg-status/>.
+> More information: <https://salsa.debian.org/debian/check-dfsg-status>.
 
 - List non-free and contrib packages (and their description):
 
@@ -10,4 +10,4 @@
 
 - Only output the package names:
 
-`check-dfsg-status --sparse`
+`check-dfsg-status {{[-s|--sparse]}}`

pages/linux/check-language-support.md

@@ -9,7 +9,7 @@
 
 - List packages for a specific locale:
 
-`check-language-support --language {{en}}`
+`check-language-support {{[-l|--language]}} {{en}}`
 
 - Display installed packages as well as missing ones:
 

pages/linux/chntpw.md

@@ -2,7 +2,7 @@
 
 > A utility that can edit windows registry, reset user password, promote users to administrator by modifying the Windows SAM.
 > Boot target machine with live cd like Kali Linux and run with elevated privileges.
-> More information: <https://pogostick.net/~pnh/ntpasswd>.
+> More information: <https://pogostick.net/~pnh/ntpasswd/MANUAL.txt>.
 
 - List all users in the SAM file:
 

pages/linux/cloud-init.md

@@ -1,7 +1,7 @@
 # cloud-init
 
 > Command line tool for managing cloud instance initialization.
-> More information: <https://cloudinit.readthedocs.io>.
+> More information: <https://cloudinit.readthedocs.io/en/latest/reference/cli.html>.
 
 - Display the status of the most recent cloud-init run:
 

pages/linux/cpulimit.md

@@ -1,28 +1,28 @@
 # cpulimit
 
 > A tool to throttle the CPU usage of other processes.
-> More information: <https://cpulimit.sourceforge.net/>.
+> More information: <https://manned.org/cpulimit>.
 
 - Limit an existing process with PID 1234 to only use 25% of the CPU:
 
-`cpulimit --pid {{1234}} --limit {{25%}}`
+`cpulimit {{[-p|--pid]}} {{1234}} {{[-l|--limit]}} {{25%}}`
 
 - Limit an existing program by its executable name:
 
-`cpulimit --exe {{program}} --limit {{25}}`
+`cpulimit {{[-e|--exe]}} {{program}} {{[-l|--limit]}} {{25}}`
 
 - Launch a given program and limit it to only use 50% of the CPU:
 
-`cpulimit --limit {{50}} -- {{program argument1 argument2 ...}}`
+`cpulimit {{[-l|--limit]}} {{50}} -- {{program argument1 argument2 ...}}`
 
 - Launch a program, limit its CPU usage to 50% and run cpulimit in the background:
 
-`cpulimit --limit {{50}} --background -- {{program}}`
+`cpulimit {{[-l|--limit]}} {{50}} {{[-b|--background]}} -- {{program}}`
 
 - Kill its process if the program's CPU usage goes over 50%:
 
-`cpulimit --limit 50 --kill -- {{program}}`
+`cpulimit {{[-l|--limit]}} 50 {{[-k|--kill]}} -- {{program}}`
 
 - Throttle both it and its child processes so that none go about 25% CPU:
 
-`cpulimit --limit {{25}} --monitor-forks -- {{program}}`
+`cpulimit {{[-l|--limit]}} {{25}} {{[-m|--monitor-forks]}} -- {{program}}`

pages/linux/crond.md

@@ -11,7 +11,7 @@
 
 `crond -n`
 
-- Send job output from the daemon to the system log:
+- Send job output from the daemon to the [s]ystem log:
 
 `crond -s`
 

pages/linux/cryptsetup-open.md

@@ -11,7 +11,7 @@
 
 - Use a keyfile instead of a passphrase:
 
-`cryptsetup open --key-file {{path/to/file}} {{/dev/sdXY}} {{mapping_name}}`
+`cryptsetup open {{[-k|--key-file]}} {{path/to/file}} {{/dev/sdXY}} {{mapping_name}}`
 
 - Allow the use of TRIM on the device:
 
@@ -23,4 +23,4 @@
 
 - Open a LUKS volume and make the decrypted mapping read-only:
 
-`cryptsetup open --readonly {{/dev/sdXY}} {{mapping_name}}`
+`cryptsetup open {{[-r|--readonly]}} {{/dev/sdXY}} {{mapping_name}}`