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

3 votes106 views3 answers
How to deploy react app to github pages
Shell/Bash
0 vote145 views1 answer
Install glesv2 and egl library
Shell/Bash
0 vote130 views1 answer
Path to flutter linux
Shell/Bash
0 vote80 views0 answer
Shell/Bash
1 vote82 views1 answer
Create and extract war file
Shell/Bash
33 votes112 views6 answers
Windows install chocolatey
Shell/Bash
49 votes141 views6 answers
Save username and password in git
Shell/Bash
1 vote116 views1 answer
How to change fedora clock to 12 hour
Shell/Bash
2 votes126 views2 answers
Update index assume changed
Shell/Bash
1 vote125 views1 answer
Show internet password
Shell/Bash