This page contains several cheatsheets for applications that I use frequently.
Install asdf from via brew with brew install asdf.
asdf list # List all installed applications and marks their defaults with a star
asdf local nodejs 23.6.0 # Set the local version of `nodejs` to `23.6.0`
curl -k https://example.com # -k allows self-signed (insecure certificates)
Several commands to handle disk space related questions
df -h # Shows all disks, their mountpoints and how much space is available
du -sh path # Calculate size of a particular folder, including subfolders
du -h --max-depth=1 path # Show the size of all subfolders under path with a maximum defined depth
git switch <branch> # Switch to a remote branch locally and set up tracking the remote branch
git commit --allow-empty # Allow empty commits (useful for adding just a message)
git config user.email "[email protected]" # Set email for the current repository
grep "pattern" file.txt # Search for a pattern in a file
jq '.' file.json # Basic usage, load file.json and select everything
jq '.key' file.json # Select everything under "key"
jq '."key-with-dashes"' # Select from special key-with-dashes
sudo -u user command # Run command as specified user
Ctrl+Z # Move current command to the background, keeps running
fg # Move background command to the foreground again
bc -l # Run interactive a basic calculator with 20 digit precision
find . -name "file.py" # Search for file.py in current folder and all subfolders
-- Log all queries
SET GLOBAL log_output = 'TABLE';
SET GLOBAL general_log = 'ON';
SELECT command_type, argument FROM mysql.general_log;
ssh-add -l # List all identities added to the SSH agent
ssh-add -D # Delete all identities
ssh-add path/to/file # Add private key to ssh-agent
:e . # Open a file explorer in the current working directory
:tabe # Open file in new tab
:tabn # Go to next tab
:tabp # Go to previous tab
:w # Write current file
:q # Quit ViM
:q! # Force Quit ViM
:/<term> # Search for term
n # Next search hit
p # Previous search hit
w # Next word
b # Previous word
Ctrl+f # Scroll forward to next page
Ctrl+d # Scroll down half a screen
Ctrl+b # Scroll backward to previous page
Ctrl+u # Scroll up half a screen
:sp # Open new horizontal split with current file
:vs # Open new vertical split with current file
:term # Alias of terminal, close with Ctrl+D
:terminal # Open a new terminal window, close with Ctrl+z
Ctrl+w h # Switch to left window
Ctrl+w l # Switch to right window
Ctrl+z # Bring window to the background (open a shell), return with "fg"
i # Switch to insert mode at the current cursor
A # Append to current line at the end
o # Insert line below
O # Insert line above
u # Undo latest change
Ctrl-r # Redo latest change
dw # Delete word
d$ # Delete from cursor position to end of line
~ # Switch between upper and lower case
guu # Switch current line to lower case
gUU # Switch current line to upper case
Resize Operations
Ctrl+w - # Shrink current window horizontally
Ctrl+w + # Expand current window horizontally
Ctrl+w > # Expand current window to the right (Remmeber to press the Shift key)
Ctrl+w < # Shrink current window to the left (Remember to press the Shift key)