print command for lab

p

#!/bin/bash
if [ -z $1 ]
then echo "PLEASE USE : p <rollNo>"
fi

# Get the current folder name, here it will be s13 or s14 etc
currentFolder=${PWD##*/}
# Input to the program will be a two digit roll number. 
rollNumber=$1
# Full roll no is the roll number along with the folder, eg s1380
fullRollNumber=$currentFolder$rollNumber
# tempPrintFile is where the printing file is stored as a single file
tempPrintFile="/tmp/printFile"

# for each file 'f' in the print folder, do the following operations
echo "" > $tempPrintFile
for f in $fullRollNumber/print/*
do
    # The following commands are done into a single file, concatinated in tmp folder
    # To print userid and file as first line
    (echo -e "\nUSERID : $fullRollNumber        FILE : $f\n\n"
    # Convert tabs to 4 spaces in the files and print it
    sed 's/\t/    /g' $f
    # Print a line break
    echo -e "\f") >> $tempPrintFile
done

# print the current temporary print file
lp $tempPrintFile > /dev/lp0

Instructions: copy the file to /home/administrator/Desktop/p
run command as p <2 digit roll no> from inside s13 or s14 etc folder