Questions

This time, instead of presenting you with questions to answer, I’ll present you with some buggy shell scripts. Try running them to observe the errors, and then try to debug them. Can you debug them? Sure you can. I have faith in you.

1. We’ll start with the bug1.sh script:

   #!/bin/bash
   echo "Fix this script...I've got bugs"
   a=45
   if [$a -gt 27 ]
   then
   echo $a
   fi
   exit
   

2. Here’s the bug2.sh script:

   #!/bin/bash
   echo "Fix this script...I've got bugs"
   for i in 1 2 3 4 5 6 7 8 9
   do
   echo $i
   exit
   

3. Now, for bug3.sh:

   #!/bin/bash
   echo "Fix this script...I've got bugs"
   scripts=$(ls | grep [a-z]*.sh)
   echo $scripts
   exit
   

4. Here’s the fourth and final, bug4.sh:

   #! /bin/bash
   echo '1 2 3' > sample.data
   cut -d' ' -f1,3 sample.data | read x z
   echo $((x+z))