Auto-Rotation on KDE Plasma ( Wayland ) – Lenovo ThinkPad X1 Tablet Gen 3

CONTEXT -------- Debian 13 (Trixie) + KDE Plasma 5.27 on Wayland.   Lenovo ThinkPad X1 Tablet Gen 3 (QHD 3000×2000, i7-8550U).   iio-sensor-proxy detects the accelerometer but doesn’t publish orientation on DBus.   Solution: use raw accelerometer values and rotate via kscreen-doctor (KDE’s Wayland tool). REQUIREMENTS ------------- sudo apt install kscreen   Accelerometer visible at /sys/bus/iio/devices/iio:device*/in_accel_x_raw FINAL SCRIPT — ~/.local/bin/autorotate-wayland.sh ------------------------------------------------- #!/usr/bin/env bash # Auto-rotate for KDE Plasma (Wayland) – ThinkPad X1 Tablet Gen 3 # Reads raw accelerometer data and rotates screen via kscreen-doctor. # Touch/pen mapping handled automatically by Wayland. # Create ~/.config/autorotate.lock to disable rotation temporarily. OUTPUT_ID="output.1"                                 # from `kscr...
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Manipulating texts and lines: SORT, UNIQ, PASTE, JOIN, SPLIT

 SORT

Basically, alphabetical sorting.

$ sort <filename>
Sort the lines in the specified file, according to the characters at the beginning of each line

$ cat file1 file2 | sort
Combine the two files, then sort the lines and display the output on the terminal

$ sort -r <filename>
Sort the lines in reverse order

$ sort -k 3 <filename>
Sort the lines by the 3rd field on each line instead of the beginning


UNIQ

Remove the duplicates in the same line of a file

$ sort file1 file2 | uniq > file3
or
$ sort -u file1 file2 > file3

$ uniq -c filename
counts the numbers of duplicates


PASTE

$ paste -d ':' file1 file2
Merges the rows of file1 and file2 separating them with ":" instead of a TAB space.

-s
Outputs the data in horizontal rows instead of vertical.


JOIN

$ join file1 file2
Merges the rows of file1 and file2 overwriting the same fileds.


SPLIT

$ split file segment-file
Splits file1 into equal-sized segments named segment-filexx of 1000 lines each (default number). Where xx is the number related to each segment file.

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