Bash commands are mainly supported in MacOS, Linux but also support in Windows. You can use integrated tools for using bash on these platforms.

👉 Note: Terminal + ZSH

Tools

• Apps: cmder (Windows), iTerm2 (MacOS), Guake Terminal (Linux), Hyper (multi-platforms).
• Online: repl.it

Hotkeys

• Ctrl + C : interrupt current tasks.
• Ctrl + L : clear the screen.
• Tab : autocomplete the commands / directories / file names / ....
• Ctrl + Shift + V : paste from clipboard.
• For a long list: Enter to continue to read, q to quit.
• Ctrl + A: move cursor to the beginning of the line.

Multiple commands

# run at once
command_1 && command_2

.sh file

<aside> ☝️ #!/bin/bash tells your terminal to run the script with bash. There are also zsh, sh, fish,...

</aside>

# using script: file.sh
#!/bin/sh
echo 'some info'
command_1
command_2

# and then sh file.sh

# with arguments
$file1 = $1
wc $file1 # word count

# multiple input args
for FILE1 in "$@"; do
	wc $FILE1
done

NAME="defaut" # default value! DON'T HAVE SPACE!!!
# with flags
while getopts n:f: option; do
	case "${option}"
		in
			n) NAME=${OPTARG};;
			f) FILE=${OPTARG};;
	esac
done

echo $NAME
wc $FILE

# how to use?
sh test.sh -n "ThiD" -f test.md

Search / grep / sed

# all files / folders containing 'abc'
ls | grep -i abc

# find command lines containing 'abc'
dpkg -l | grep -i abc