CMP CMD > snippets

2 TL;DR : #

3 "watchdogs" #

inotify

 1sudo pacman -S inotify-tools
 2which inotifywait
 3inotifywait --version
 4```1
 5
 6alternatives
 7
 8**entr**
 9
10```bash
11# install
12sudo pacman -Qs entr
13# eg
14ls ~/blog-local/*.md | entr -r rsync -av --exclude='.~*' ~/blog-local/ ~/blog-remote/
15# cons
16# needs eg `ls` -- no auto detect

systemd.path

watch dirs -> trigger service

see https://eog.prose.sh/cmp.cmd..systemd.path..watch.dir.and.sync

3 delete lines #

whole lines beginning with <

1^<.*\n?
2# ^ = start of line
3# < = literal <
4# .* = rest of line
5# \n? = also remove the newline so you don’t leave blank lines

delete any empty line (even lines with spaces):

1^\s*\n
2# ^\s* matches zero or more whitespace chars from the start of the line
3# \n removes the actual newline

only truly empty lines (no spaces):

1^\n

3 find foo OR bar #

1find . \( -name "*.htm" -o -name "*.html" \)
2
3# alternative
4find . -regex '.*\.html?'

Escape parentheses to prevent shell from eating them.

3 mpv #

1
2_useragent='Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36'
3
4mpv --user-agent="$_useragent" <URL>
5
6# or
7cat << EOG >> ~/.config/mpv/mpv.conf
8user-agent="_useragent"
9EOG

3 YAML #

https://developers.machinemetrics.com/docs/adapter-scripts/yaml

array inline

1# 
2tags: [feature, announcement]

is same as

1tags:
2  - feature
3  - announcement

Indent w/ min. 2 spaces. But NO TABS allowed!!

1authors:                # = key
2  - name: Alice         # = object / map
3    role: writer        # belongs to this object
4    socials:
5      twitter: alice42
6
7  - name: Bob
8...

1authors =
2[
3  { name: "Alice", role: "writer", socials: {twitter:"alice42"} },
4  { name: "Bob", role: "editor", socials: {twitter:"bob_edit"} }
5]

Tips

indentation 2 spaces at each level.

.

2 Rsync w/ links but NOT copying these files #

--links # default in -a

remove /storage/static-e1b9045b-d89a-4dbb-8a90-addcee48aac4/prose: directory not empty

This is exactly what --delete is supposed to do — it’s just catastrophically dangerous when the source list is incomplete. ✔ Golden Rule: NEVER run --delete with shell globs (foo*, *.md, etc.)

You must always give rsync a directory as the source.

✔ Correct + safe way to do “only sync foo*, and delete remote foo* not local”

We need to: . sync only files matching foo* . delete remote foo* that don’t exist locally . NOT delete unrelated files

The safe way is to use filters, not shell globs.

! Correct method: use --include / --exclude filters