GNU tools quick ref

Terminal Signals :stop_sign:

Exit Ctrl-D
Cancel (kill) app/job Ctrl-C
Suspend Ctrl-Z suspend (pause) an app/job (go back to bash)
- Resume job fg (list all with jobs)

Readline :ledger:

Go to beginning of line Ctrl-a
Go to end of line Ctrl-e
Delete line Ctrl-x <Backspace>
Move by words Ctrl- <Arrow-Keys>
Open command in $EDITOR, execute upon exit Ctrl-x Ctrl-e or fc

Files and Directories :file_folder:

Copy file contents to clipboard (on WSL) cat $file | clip.exe
Copy file contents to clipboard (on Wayland) cat $file | wl-copy
Search command history: <C-r> startOfCommand
Search for "pattern" and print matching lines: grep. Hint: ripgrep rg is easier to use and super fast.
Find files by filename: find . -name Foo.txt.
- Find files case insensitive filename: find . -iname "*foo*txt"
- Or use a fuzzy finder (fzf/skim/neovim telescope).
Create symlink ln -s actual_file_path symlink_path
Extract .tar.gz file tar -xzf <filename (remember eXtract tZe File)

Networking :globe_with_meridians:

List ip-address ip addr
List ip addresses on same network: ip neigh
nslookup
SSH ssh username@ip -p portnumber
- Start ssh service to allow log-ins (fedora) systemctl start sshd.service
Copy files between local computer and remote scp $file username@ip:/home/$dir or scp username@ip:/home/$file $localdir

tmux :computer:

list sessions tmux ls or Ctrl-b s
attach tmux attach #
rename window Ctrl-b ,
new pane Ctrl-b " or Ctrl-b %
break out pane to a new window Ctrl-b !
toggle layouts Ctrl-b <space>
resize pane Ctrl-b :resize-pane -{L|R|D|U} {cellSize}. Can also be done from the shell:
```
$ tmux resize-pane -R 10
```
resize panes Ctrl-b alt-arrows
popup tmux display-popup [-E 'python']

Gnome :framed_picture:

Activities overview: <super>
Move focus to menubar: <super> <f10>
Move focus between window and menubar: <control> <alt> <tab>
Switch between windows: <super> <tab>
- Then press ` or <down> to switch through windows within an application
Switch between workspaces: <super> <alt> <arrow>
Snap window: <super> <arrow-keys>
Move window to another screen: <shift> <super> <arrow-keys>
Pop open window menu: <alt> <space>
Focus on active notification: <super> n
Show notification list: <super> v

Send notification from terminal:

$ notify-send 'Hello world' 'the command has finished'

Lock screen: <super> l
Screenshot...: <PrintScreen>
Project external displays: <super> P
Toggle zoom: <alt> <super> 8
Emoji picker: <windows> <.> <keyword> <space> <space>
- Note: Does not work in all applications. E.g. Currently doesn't work in Chrome.

alacritty :keyboard:

Launch vi mode: Ctrl Shift Space

systemctl & UEFI/BIOS :control_knobs:

Boot into UEFI/BIOS: sudo systemctl reboot --firmware-setup
See boot order sudo efibootmgr
Boot next sudo efibootmgr --bootnext XXXX

Configure systemd-resolved to not use azure private endpoints

Create file /etc/systemd/resolved.conf.d/az_blob_pub.conf with the following content

# Work around missconfigured peerings from on-prem networks to azure blob storage private endpoints
# by forcing DNS to a public DNS server (in this case cloudflare DNS)
[Resolve]
DNS=1.1.1.1 2606:4700:4700::1111
Domains=~blob.core.windows.net

My notes