updated correct code for q2

q2/q2.sh

 #!/bin/sh
 #converting whitespaces to new line in temp file
-sed -e 's/[\t ]\+/\n/g' -e 's/https/\nhttps/g' $1 >temp 
+sed -e 's/[\t ]\+/\n/g' -e 's/https/\nhttps/g' -e 's/http/\nhttp/g' $1 >temp 
 #saving all urls
-sed -n '/http[s]\:\/\/www\.cse\.iitb\.ac\.in[/][~][a-z]\{5,15\}/p' temp >url
+sed -n '/http[s]\:\/\/www\.cse\.iitb\.ac\.in[/]\{1\}[~]\{1\}[a-z]\{5,15\}/p' temp >url
 rm temp
 #trimming    $1
-sed -i -e 's/'
 sed -i  -e 's/[\t ]\+/  /g' -e 's/[)]\{1\}/ )/g'  -e 's/http[s]\?\:\/\/[^ ]\+/ /g' -e 's/[ ][^ ^@]\+[.]\{1\}\(com\|in\|org\|net\|co\|us\|edu\|gov\|au\)\{1\}[/]\{0,1\}[^ ^@]\+[ ]\+/ /g' -e 's/[ ]\{1\}[)]\{1\}/)/g' $1
 sed -i  -e 's/[\t ]\+/ /g' $1
\ No newline at end of file

q2/url

+https://www.cse.iitb.ac.in/~aarushi
+https://www.cse.iitb.ac.in/~singhabhijeet
+https://www.cse.iitb.ac.in/~abhinandan
+https://www.cse.iitb.ac.in/~abhinivesh
+https://www.cse.iitb.ac.in/~abhiranjan
+https://www.cse.iitb.ac.in/~abhishekchugh
+https://www.cse.iitb.ac.in/~abhishekraut
+https://www.cse.iitb.ac.in/~pradhanaditya
+https://www.cse.iitb.ac.in/~adityajain
+https://www.cse.iitb.ac.in/~adityazoot
+https://www.cse.iitb.ac.in/~ajayjain
+https://www.cse.iitb.ac.in/~ajaykushwaha
+https://www.cse.iitb.ac.in/~ajinx
+https://www.cse.iitb.ac.in/~akshaybatheja
+https://www.cse.iitb.ac.in/~amanknit
+https://www.cse.iitb.ac.in/~amitkhurana
+https://www.cse.iitb.ac.in/~akiitb
+https://www.cse.iitb.ac.in/~amithari
+https://www.cse.iitb.ac.in/~ankydv
+https://www.cse.iitb.ac.in/~anishmm
+https://www.cse.iitb.ac.in/~ankitkumar
+https://www.cse.iitb.ac.in/~ankitpagare
+https://www.cse.iitb.ac.in/~ankitj
+https://www.cse.iitb.ac.in/~ankitgtron
+https://www.cse.iitb.ac.in/~ankushagrawal
+https://www.cse.iitb.ac.in/~anmolkalra
+https://www.cse.iitb.ac.in/~apoorva
+https://www.cse.iitb.ac.in/~arnabdas
+https://www.cse.iitb.ac.in/~ashishaggarwal
+https://www.cse.iitb.ac.in/~ashwani
+https://www.cse.iitb.ac.in/~aviralsingh
+https://www.cse.iitb.ac.in/~ayushsharma
+https://www.cse.iitb.ac.in/~aaybachelor
+https://www.cse.iitb.ac.in/~balbirsingh
+https://www.cse.iitb.ac.in/~bandanaravi
+https://www.cse.iitb.ac.in/~saikumar
+https://www.cse.iitb.ac.in/~vishwajeets
+https://www.cse.iitb.ac.in/~charang
+https://www.cse.iitb.ac.in/~chinmaypk
+https://www.cse.iitb.ac.in/~darshanp
+https://www.cse.iitb.ac.in/~dbiswal
+https://www.cse.iitb.ac.in/~debasish
+https://www.cse.iitb.ac.in/~deepakbaghel
+https://www.cse.iitb.ac.in/~dharmendracse
+https://www.cse.iitb.ac.in/~dhrumilraval
+https://www.cse.iitb.ac.in/~divyakotadiya
+https://www.cse.iitb.ac.in/~fenilgmehta
+https://www.cse.iitb.ac.in/~gauravdewangan
+https://www.cse.iitb.ac.in/~beingguru
+https://www.cse.iitb.ac.in/~harshiitb
+https://www.cse.iitb.ac.in/~harshpeswani
+https://www.cse.iitb.ac.in/~hrishikesh
+https://www.cse.iitb.ac.in/~iishapandey
+https://www.cse.iitb.ac.in/~jalay
+https://www.cse.iitb.ac.in/~keshavagarwal