pages*/*: update outdated pages, pages/*: fix placeholders (#14171)

pages/common/docker-ps.md

@@ -25,7 +25,7 @@
 
 - Filter containers by exit status code:
 
-`docker ps --all --filter="exited={{code}}"`
+`docker ps --all --filter "exited={{code}}"`
 
 - Filter containers by status (created, running, removing, paused, exited and dead):
 

pages/common/dust.md

@@ -13,11 +13,11 @@
 
 - Display 30 directories (defaults to 21):
 
-`dust --number-of-lines {{30}}`
+`dust --number-of-lines 30`
 
 - Display information for the current directory, up to 3 levels deep:
 
-`dust --depth {{3}}`
+`dust --depth 3`
 
 - Display the biggest directories at the top in descending order:
 

pages/common/id3tag.md

@@ -9,7 +9,7 @@
 
 - Set album title of all MP3 files in the current directory:
 
-`id3tag --album={{album}} {{*.mp3}}`
+`id3tag --album {{album}} {{*.mp3}}`
 
 - Display help:
 

pages/common/mpv.md

@@ -26,7 +26,7 @@
 
 - Play a file at a specified speed (1 by default):
 
-`mpv --speed={{0.01..100}} {{path/to/file}}`
+`mpv --speed {{0.01..100}} {{path/to/file}}`
 
 - Play a file using a profile defined in the `mpv.conf` file:
 

pages/linux/gedit.md

@@ -13,7 +13,7 @@
 
 - Open a text file with a specific encoding:
 
-`gedit --encoding={{UTF-8}} {{path/to/file}}`
+`gedit --encoding {{UTF-8}} {{path/to/file}}`
 
 - Display a list of supported encodings:
 

pages/linux/journalctl.md

@@ -5,11 +5,11 @@
 
 - Show all messages with priority level 3 (errors) from this [b]oot:
 
-`journalctl -b --priority={{3}}`
+`journalctl -b --priority=3`
 
 - Delete journal logs which are older than 2 days:
 
-`journalctl --vacuum-time={{2d}}`
+`journalctl --vacuum-time=2d`
 
 - Show only the last N li[n]es and [f]ollow new messages (like `tail -f` for traditional syslog):