terminal

Open a terminal from another (e.g. VSCode) terminal

open -a terminal .

vim /etc/paths

pip3 freeze | grep Xlsx

open .

lsof -i tcp:3000
kill [PID]

find . -name "node_modules" -exec rm -rf '{}' +

The following will return something along the lines of hie is /Users/username/.local/bin/hie:

type -a hie

clear - clear the terminal
pwd - print working directory
mkdir - make directory
touch - create a file (e.g. touch example.txt)
cp - copy (e.g. cp file.txt target_directory)
mv - move (e.g. mv file.txt target_directory), can also rename a file (e.g. mv old_file_name.txt new_file_name.txt)
rm - remove (e.g. rm file.txt), can also remove files recursively (e.g. rm directory_name)
echo - send to stdout
cat - read content of a file
alias - set aliases (e.g. alias pd="pwd" means pd can be used interchangably with pwd)
export - set environment variables!
env - return list of environment variables
> - redirect stdout to a file (e.g. echo "Hello" > hello.txt)
>> - append stdout to a file
< - redirct stdin to a command (e.g. cat < file.txt)
| - pipe stdout of LHS as stdin to RHS
wc - word count (of a text file)
uniq - unique the contents of a file (on a line-wise basis?)
grep - global regular expression print (-i adds case insensitivity, -R recursive, e.g. within directory)
sed - 'streams editor', can be used for find and replace
nano - text editor
source - source ~/.bash_profile makes all aliases available in the current session
history - command history

~/.bash_profile

(where ~ is an alias for $HOME and . represents a hidden file)

Most commands are stored in /bin
/bin is a directory on the path (...and hence is available in a terminal session)
Hence you can see all commands using: cd /bin, ls

Last updated 6 years ago