Shell Programming and Scripting

#!/usr/bin/ksh
file1.py
/*......????*/

#! /bin/ksh
PATH=/dir

file1.py && \
file2.py && \
file3.py && \
file4.py

exit 0

#! /bin/ksh
PATH=/dir

file1.py
if [ $? -eq 0 ]
then
    file2.py
    if [ $? -eq 0 ]
    then
        file3.py
        if [ $? -eq 0 ]
        then
            file4.py
        fi
    fi
fi

exit 0

 file1.py && file2.py && file3.py && file4.py

# runs anything that starts with "file" and ends with .py in alpha order
for script in ./file*.py   
do
  if script
  then
    echo "$script OK"
  else
    echo "$script failed"
    exit 1
  fi
done
exit 0

#!/usr/bin/python
...

#!/usr/bin/ksh

set -e

file1.py
file2.py
file3.py
file4.py