Write a script that takes a filename as an argument and adds execution permissio

Question

Write a script that takes a filename as an argument and adds execution permission to the file for the user if the file is a regular file. Make sure that your script checks for error conditions. Use the following pseudocode to develop your script:

#!/bin/bash

if # of arguments is one then if file in $1 exists

then if file in $1 is a regular file

then add execute permission

else print message that this is not a regular file

fi

else print message that the file does not exist

fi

else print the "Usage" message

fi

Explanation / Answer

#!/bin/bash
echo -n "enter file name>"
read filename
if [ -f $filename ] ; Then
chmod u=x filename
else
echo "It's not a regular file"
fi
else
echo "file does not exist"
fi
else print the "Usage" message
fi

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