diff --git a/blog/posts/guide_things_i_keep_having_to_google/index.php b/blog/posts/guide_things_i_keep_having_to_google/index.php
index e35dce0..4baedf0 100644
--- a/blog/posts/guide_things_i_keep_having_to_google/index.php
+++ b/blog/posts/guide_things_i_keep_having_to_google/index.php
@@ -34,7 +34,7 @@
Binding things to just the Super key in KDE
- Bind it to some other keyboard shortcut using KDE's typical GUI methods. Any shortcut will do.
- - Find the entry for it in
~/.config/khotkeysrc. There should be a line that looks like: Uuid={77575b17-36d6-4b4e-b01f-2f1156e38583}. Copy the contents of that line, specifically everything I have underlined there.
+ - Find the entry for it in
~/.config/khotkeysrc. There should be a line that looks like: Uuid={77575b17-36d6-4b4e-b01f-2f1156e38583}. Copy everything inside the curly braces, including the braces themselves.
- Run the following commands:
$ kwriteconfig5 --file ~/.config/kwinrc --group ModifierOnlyShortcuts --key Meta "org.kde.kglobalaccel,/component/khotkeys,org.kde.kglobalaccel.Component,invokeShortcut,<YOUR UUID HERE>"
$ qdbus org.kde.KWin /KWin reconfigure
@@ -55,12 +55,21 @@
"te$(command)xt"
"as$((math))df" | Both can be inserted into strings. |
"some $variable text"
"more${variable}text" | Both of these are valid ways to insert a variable into a string. |
grep |
- -v | inverts it, so matches are excluded |
- -E "/regex/" | lets you use regex |
+ -v | Inverts it, so matches are excluded |
+ -E "/regex/" | Lets you use regex |
cut |
- -d 'string' | determines the delimiter string |
- -f n | specifies a field to output, delimited by -d |
+ -d 'string' | Determines the delimiter string, the default is the TAB character |
+ -f n | Specifies a field to output, delimited by -d |
sed 's/ */ /g' | cut -d ' ' | Piping your thing through this helps with parsing a lot of Linux commands that output tabular data |
+ sed |
+ sed "s/regex/replacement/flags" | The basic sed replacement command, checks a line of input against the provided regular expression regex and replaces matches with replacement. |
+ sed "s/a/b/;s/c/d/" | Multiple sed commands can be strung together in one, like so. |
+ sed "s/a/b/g" | The g flag makes sed replace all occurences of the pattern, not just the first |
+ sed "s/a/b/<number>" | Insert any number to tell sed to replace only that occurence. Counts from 1. Theoretically, s/a/b/ is the same as s/a/b/1. |
+ sed "s/a/b/i" | GNU extension - Match case-insensitively. |
+ sed "s/^a/b/" | Require that a match be at the beginning of the line. |
+ sed "s/a$/b/" | Require that a match be at the end of the line. |
+ sed "s/^a$/b/" | Require that a match be both at the beginning and the end - in other words, require that a match be the entire line. |
misc |
xrandr --output <display name> --brightness <brightness> | Janky software-side display brightness setting with xrandr |
wget "https://example.com/file.zip" -O temp.zip; unzip temp.zip; rm temp.zip | Bash one-liner to unzip a file from the internet to the current directory |