Write a bash shell script to carry out each of the following tasks: a. Backup: A

Question

Write a bash shell script to carry out each of the following tasks:

a. Backup:

Archive as a "tarball" (*.tar.gz file) all the files in your home directory tree (/home/your-name) that have been modified in the last 48 hours. Hint: use the command “find”.

b. Phone:

Write a shell script (called phone) that creates a simple telephone list (create an empty file called “phonelist” in your home directory). Each line in this file consists of two fields: a name and a phone number. The script shall do the following:

1. When the user types the command: “phone new name number” this will add new record (name, number) to the list.

2. When the user types the command: “phone name” then the script should search in the file “phonelist” and get the corresponding phone number and display the result.

Explanation / Answer

a. find . -mtime -2 | xargs tar --no-recursion -czf tarball.tgz

b.

#! /bin/sh

if [ "${1}" = "phone new" ]

then

        echo "${2} ${3}" >> phonelist

else

        cat phonelist | grep "${1}";

fi

exit 0

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