sirmaestro / dev

Commands cheat sheet for home lab

dev

Useful commands

List 1st level of subdirectory size

sudo du -hc --max-depth=1 .

Generate Public/Private keys to ssh into server

ssh-keygen
cat ~/.ssh/id_rsa.pub | ssh USER@HOST "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"

Zip directory with exclusion

zip -r node.zip . -x "**/node_modules/*"

zip -r dir.zip dir/ -x */\.* *.git* \.* *.zip *.csv *.json *.rb *.bak *.swp *.back *.merge *.txt *.sh dir1/node_modules/**\* dir1/bower_components/**\* dir1/dist/**.*

Unzip directory

unzip -o -d target_directory zip_file

Command	Description
-l	List contents of zip
-d	Unzip to target directory
-o	Overwrite existing files
-u	Update files
-f	Update only existing files
-x	Exclude files e.g. -x *.srt

Rsync - Move files but better

rsync /path/to/source-file /path/to/destination

Command	Description
-a	Recursive transfer, the transfer of file modification times, file permissions, symbolic links
-v	Increase verbosity
-h	Output numbers in a human-readable format
-P	Shows progress and keeps partially transferred files
-n	Dryrun
-z	Compress file data during the transfer
--remove-source-files	Sender removes synchronized files (non-dir)
--ignore-existing	Skip existing files
--delete	Delete destination files
--exclude	Exclude source files e.g. `--exclude 'path'

Check SMB shares on a host

smbclient -L host

Mount SMB share in linux

mount -t cifs -o username=user_name //server_name/share_name /mnt/data

e.g.

mount -t cifs -o username=plex //192.168.1.222/media /mnt/temp

example in relaxed environment (unraid), no enforcing permission or credientials

mount -t cifs -o rw,guest,noperm //192.168.1.2 /mnt/temp

Tmux

Command	Description
tmux	Start a new session
tmux ls	List all sessions
Ctrl b, d	Detach from session
tmux attach -t	Re-attach a detached session

Git

Stashes changes, pulls from either the master or main branch, fetches updates from the remote, prunes remote-tracking branches, and finally prunes local branches that are no longer present on the remote.

/usr/bin/find . -maxdepth 1 -type d -print | parallel --eta 'echo {} && git -C {} stash && (git -C {} rev-parse --verify --quiet master && git -C {} checkout master || git -C {} checkout main) && git -C {} pull && git -C {} fetch -p && git -C {} remote prune origin && for branch in $(git -C {} branch -vv | grep ": gone]" | awk "{print \$1}"); do git -C {} branch -D $branch; done' \;