Bash parameter count

# use $#

# say if you are expecting exactly 2 parameters
# -ne is bash's way of saying not equal
if [[ "$#" -ne 2 ]]; then
	echo "this script needs exactly 2 parameters"
    exit 1
 fi

Similar codes

1 vote283 views1 answer
Install docker linux mint
Shell/Bash
0 vote283 views1 answer
How to install lshellchecck in linux
Shell/Bash
0 vote300 views1 answer
Ubuntu battery and network utilities install
Shell/Bash
0 vote291 views1 answer
Download composer version 1.6.5
Shell/Bash
17 votes289 views3 answers
How to specify version in npm install
Shell/Bash
1 vote278 views1 answer
Linux ip addr add
Shell/Bash
1 vote310 views1 answer
Npm port already in use
Shell/Bash
2 votes290 views2 answers
How to install random module in python
Shell/Bash
20 votes334 views4 answers
Git stash pop index
Shell/Bash
1 vote290 views1 answer
How to do sum with exper in linux
Shell/Bash