Terminal
General
return the last command
!!
make file executable
chmod +x
add write access to a group
chmod g+w
change file owner and group
chown
check folder size
du -h Gigabyte <folder_name>
-h "Human-readable" output. Use unit suffixes: Byte, Kilobyte, Megabyte, Gigabyte, Terabyte and Petabyte.
Setup
Using Alt/Cmd + Right/Left Arrow in iTerm
Go to iTerm Preferences → Profiles, select your profile, then the Keys tab. Find ⌥← and ⌥→ and set them to send escape sequence b and send escape sequence f respectively.
https://apple.stackexchange.com/questions/136928/using-alt-cmd-right-left-arrow-in-iterm
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