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Conditionals

16 Jul 2018

Shell scripts can accept positional arguments. They also have some useful built-in arguments.

Write The Shell Script

#!/bin/sh

echo 'This is the first argument:'
echo $1
echo 'This is the second argument:'
echo $2
echo 'This is the third argument:'
echo $3

echo '-----------'

echo 'This is the number of arguments:'
echo $#

echo '-----------'

echo 'This is all the arguments':
echo [email protected]

echo '-----------'

echo 'This is the process ID':
echo $$

echo '-----------'

echo 'This is the script filename':
echo $0

echo '-----------'

echo 'This is the exit code':
echo $?

Run The Shell Script

sh arguments.sh banana apple grape

This is the first argument:
banana
This is the second argument:
apple
This is the third argument:
grape
-----------
This is the number of arguments:
3
-----------
This is all the arguments:
banana apple grape
-----------
This is the process ID:
92787
-----------
This is the script filename:
test.sh
-----------
This is the exit code:
0