Add descriptions and generator

README.md

@@ -0,0 +1,219 @@
+# Shell scripts
+
+Random collection of scripts and snippets.
+
+
+## btrfs
+[**bsdel**](bsdel):
+Delete given btrfs subvolumes (as root).
+\
+[**bstime**](bstime):
+Create btrfs snapshot with a timestamp in name.
+\
+[**gen-dump-image**](gen-dump-image):
+Template to generate textual dump of image of filesystem.
+
+## build
+[**jj**](jj):
+Shortcut for unlimited make with icecream.
+\
+[**jjc**](jjc):
+Shortcut for unlimited make with ccache and icecream.
+\
+[**makev**](makev):
+Run the given make command but open the results in vim
+(same as saving make output and running vi -q output).
+
+## crypt
+[**device-create-cmd**](device-create-cmd):
+Set up a block device with dm-crypt (aes-xts-plain64/sha512)
+
+## data
+[**histogram**](histogram):
+Print histogram from data set (numbers).
+\
+[**lines-between**](lines-between):
+Print lines between two markers, start included, end excluded.
+
+## fstests
+[**fstests-log**](fstests-log):
+Quick scan of dmesg or given log file for fstests and warning/bug messages.
+
+## gcc
+[**inst-gcc-links**](inst-gcc-links):
+Create symlinks for a given gcc & related tools version
+
+## git
+[**bgrep**](bgrep):
+Grep in local git branches.
+\
+[**bsel**](bsel):
+Visual git branch selector (bgrep, dialog), then print the branch name.
+\
+[**bsel-co**](bsel-co):
+Visual git branch selector (bgrep, dialog), then check out the branch.
+\
+[**bsel-tig**](bsel-tig):
+Visual git branch selector (bgrep, dialog), then run it in tig.
+\
+[**gd**](gd):
+Git diff shortcut.
+\
+[**ge**](ge):
+Edit changelog of HEAD.
+\
+[**gid**](gid):
+Git diff shortcut.
+\
+[**gis**](gis):
+Git show shortcut.
+\
+[**git-br**](git-br):
+Print current branch name.
+\
+[**git-fixesline**](git-fixesline):
+Print line from given commit for the Fixes: tag.
+\
+[**git-refresh-commit**](git-refresh-commit):
+Apply any uncommitted changes to HEAD.
+\
+[**git-reword**](git-reword):
+Edit a commit message of a given commit (rebase and --amend).
+\
+[**git-stableline**](git-stableline):
+Format line for stable patch dependencies (see
+Documentation/process/stable-kernel-rules.rst)
+\
+[**mt**](mt):
+Run the preferred git conflict resolution tool (vimdiff).
+
+## kernel
+[**add-rev**](add-rev):
+Add reviewed-by tag from known people to the right location to the top commit.
+\
+[**add-rev-to**](add-rev-to):
+Edit given commit, run 'add-rev name' and edit to fixup things
+then go back.
+
+## log
+[**gluelog.pl**](gluelog.pl):
+Glue together lines from dmesg that got wrapped due to text width.
+\
+[**lastlog.pl**](lastlog.pl):
+Chop the messages since last boot from a continuous serial console log,
+identified by the timestamp change.
+\
+[**lsslab**](lsslab):
+Print slab info with aligned columns, also can filter by slab name.
+\
+[**revfile.pl**](revfile.pl):
+Reverse input, line by line and on each line (rev + tac).
+\
+[**tscat**](tscat):
+'timestamped cat', prepend a timestamp to each line.
+
+## misc
+[**drop-caches**](drop-caches):
+Drop caches.
+\
+[**pchown**](pchown):
+Preserve permissions on chown on a file.
+\
+[**set-kbdrate**](set-kbdrate):
+In X, set delay and repeat rate for maximum productivity.
+\
+[**setperm**](setperm):
+Fix write permission on all files and directories.
+\
+[**setro**](setro):
+Set "mostly read-only" mask on all files and directories.
+\
+[**sleepy**](sleepy):
+Interactive sleep:
+\
+[**slowcat**](slowcat):
+Print input lines with a small delay (0.1s).
+\
+[**tdelta**](tdelta):
+Time delta between two timestamps.
+\
+[**waitpid**](waitpid):
+Wait until a given pid exits (poll).
+
+## net
+[**waitping**](waitping):
+Wait until the given host responds to pings.
+\
+[**waitssh**](waitssh):
+Wait until the given host is up and ready for ssh.
+\
+[**wgetcz**](wgetcz):
+Set preferred language to CZ and run wget.
+
+## osc
+[**osc-request-ack**](osc-request-ack):
+Accept given SR
+
+## packaging
+[**kernpurge**](kernpurge):
+Print kdialog with list of installed kernel packages and allow selection to
+remove them, current kernel is not in the list
+\
+[**update-python**](update-python):
+Convenient way to update python packages that exist on lower version,
+and install them on current one (3.11)
+
+## pkg
+[**zypper-add-testing-repo**](zypper-add-testing-repo):
+Add my testing repo and kernel.
+\
+[**zypper-install-packages**](zypper-install-packages):
+Install a few testing packages.
+
+## tig
+[**tigh**](tigh):
+Open arg in tig.
+\
+[**tigs**](tigs):
+Shortcut for tig status.
+
+## tmux
+[**foursquares**](foursquares):
+Create layout with four 50% squares.
+\
+[**newp**](newp):
+Split panel, 2 lines at the bottom just to see the command but not the output,
+exit afterwards
+\
+[**owntmux**](owntmux):
+Capture the named session.
+
+## vim
+[**vicg**](vicg):
+Open vim with coccigrep search, save temporary output for repeated calls
+NOTE: upstream coccigrep stopped working for some reason, this is a simpler
+version that does not find all occurences.
+\
+[**vigrep**](vigrep):
+vim grep all *.[ch] files in current directory and open (:cNext/:cnext).
+\
+[**vigrub**](vigrub):
+Edit grub1 config as root.
+\
+[**vihead**](vihead):
+In a git tree, list files from the last commit (HEAD), offer a selection and
+open in vim with the diff against HEAD^ (i.e. the last changes to the file).
+\
+[**vihead-all**](vihead-all):
+Like vihead, but go through all files.
+\
+[**vii**](vii):
+Translate "file:line:col" format to "vim +line file", to open files from e.g.
+make output.
+\
+[**vimsyn**](vimsyn):
+Generate syntax hilighted .xhtml of the given file.
+
+## x
+[**xclip-clear**](xclip-clear):
+Clear all X clipboards

README.md.in

@@ -0,0 +1,4 @@
+# Shell scripts
+
+Random collection of scripts and snippets.
+

btrfs/bsdel

@@ -1,4 +1,4 @@
 #!/bin/sh
-# delete given btrfs subvolumes
+## Delete given btrfs subvolumes (as root).
 
 sudo btrfs subvol delete "$@"

btrfs/bstime

@@ -1,5 +1,5 @@
 #!/bin/sh
-# create btrfs snapshot with a timestamp in name
+## Create btrfs snapshot with a timestamp in name.
 
 if ! [ -d "$1" ]; then
 	echo "$1 does not exist"

btrfs/gen-dump-image

@@ -1,5 +1,5 @@
 #!/bin/sh -x
-# template to generate textual dump of image of filesystem
+## Template to generate textual dump of image of filesystem.
 
 sz=2g
 rnd=$RANDOM

build/jj

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Shortcut for unlimited make with icecream.
 makej -j "$@"

build/jjc

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Shortcut for unlimited make with ccache and icecream.
 makejc -j "$@"

build/makev

@@ -1,5 +1,5 @@
 #!/bin/sh
-# run the given make command but open the results in vim
-# (same as saving make output and running vi -q output)
+## Run the given make command but open the results in vim
+## (same as saving make output and running vi -q output).
 
 vi -c ":make $@"

crypt/device-create-cmd

@@ -1 +1,2 @@
+## Set up a block device with dm-crypt (aes-xts-plain64/sha512)
 cryptsetup --cipher aes-xts-plain64 --key-size 512 --hash sha512 --iter-time 5000 --use-random --verify-passphrase luksFormat "$@"

data/histogram

@@ -1,4 +1,4 @@
 #!/bin/sh
-# print histogram from data set
+## Print histogram from data set (numbers).
 
 cat "$@" | perl -MStatistics::Histogram -e '@data = <>; chomp @data; print get_histogram(\@data);'

data/lines-between

@@ -1,5 +1,5 @@
 #!/bin/sh
-# print lines between two markers, start included, end excluded
+## Print lines between two markers, start included, end excluded.
 
 awk "
 BEGIN { doprint=0; }

ffmpeg/ff-to-x265-160p

@@ -0,0 +1,14 @@
+#!/bin/sh -x
+
+in="$1"
+
+codec=libx265
+crf=28
+q=160
+
+if [ -z "$in" ]; then
+        echo "usage: $0 infile"
+        exit 1
+fi
+
+ffmpeg -hide_banner -i "$in" -c:v $codec -crf $crf -vf scale=-2:$q -c:a libmp3lame -q:a 2 "$in".${q}p.mp4

ffmpeg/ff-to-x265-480p

@@ -0,0 +1,14 @@
+#!/bin/sh -x
+
+in="$1"
+
+codec=libx265
+crf=28
+q=480
+
+if [ -z "$in" ]; then
+        echo "usage: $0 infile"
+        exit 1
+fi
+
+ffmpeg -hide_banner -i "$in" -c:v $codec -crf $crf -vf scale=-2:$q -c:a libmp3lame -q:a 2 "$in".${q}p.mp4

fstests/fstests-log

@@ -1,5 +1,5 @@
 #!/bin/sh
-# quick scan of dmesg or given log file for fstests and warning/bug messages
+## Quick scan of dmesg or given log file for fstests and warning/bug messages.
 
 function filter() {
 	egrep -a '(run fstests|WARNING:|BUG:|RIP:|UBSAN:|^\s+[+-]|CPU:.*Comm:|write time|read time|blocked for more than|Linux version|memory leaks)'

gcc/inst-gcc-links

@@ -1,4 +1,5 @@
 #!/bin/sh
+## Create symlinks for a given gcc & related tools version
 
 if [ -z "$1" ]; then
 	echo "Usage: $0 version"

git/bgrep

@@ -1,4 +1,4 @@
 #!/bin/sh
-# grep in local git branches
+## Grep in local git branches.
 
 git branch | grep -i "$@"

git/bsel

@@ -1,6 +1,5 @@
 #!/bin/sh
-#
-# Visual branch selector
+## Visual git branch selector (bgrep, dialog), then print the branch name.
 
 width=60
 branches=( `bgrep "$1" | sed -e 's/^\*/ /' | sed -e 's/^+/ /'` )

git/bsel-co

@@ -1,6 +1,5 @@
 #!/bin/sh
-#
-# Select a branch from list and check out
+## Visual git branch selector (bgrep, dialog), then check out the branch.
 
 b=$(bsel "$1")
 if [ "$?" != 0 ]; then

git/bsel-tig

@@ -1,6 +1,5 @@
 #!/bin/sh
-#
-# Visually select a branch and tig it
+## Visual git branch selector (bgrep, dialog), then run it in tig.
 
 b=$(bsel "$1")
 if [ "$?" != 0 ]; then

git/gd

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Git diff shortcut.
 exec git diff "$@"

git/ge

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Edit changelog of HEAD.
 exec git edit "$@"

git/gid

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Git diff shortcut.
 exec git diff "$@"

git/gis

@@ -1,2 +1,3 @@
 #!/bin/sh
+## Git show shortcut.
 exec git show "$@"

git/git-br

@@ -1,5 +1,5 @@
 #!/bin/sh
-# show current branch name
+## Print current branch name.
 
 git_dir=$(git rev-parse --git-dir 2> /dev/null) || exit 1
 ref=$(git symbolic-ref HEAD 2> /dev/null) || exit 1

git/git-fixesline

@@ -1,4 +1,4 @@
 #!/bin/sh
-# format a line from given commit for the Fixes: tag
+## Print line from given commit for the Fixes: tag.
 
 git --no-pager show -s --abbrev-commit --abbrev=12 --pretty=format:"Fixes: %h (\"%s\")%n" "$@"

git/git-refresh-commit

@@ -1,4 +1,4 @@
 #!/bin/sh
-# apply any uncommitted changes to HEAD
+## Apply any uncommitted changes to HEAD.
 
 git commit --amend -a -v --no-edit

git/git-reword

@@ -1,7 +1,5 @@
 #!/bin/bash
-#
-# git-reword - edit a commit message only (like "git commit --amend", but
-#              works for non-HEAD patches).
+## Edit a commit message of a given commit (rebase and --amend).
 
 CID="$1"