Third Lab added

Lab 3/Inlab/infiniteLoop.sh

+#!/bin/bash
+while [ true ]; 
+do
+	sleep 1
+done
+exit 0
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Lab 3/Inlab/myBashCustomization.sh

+
+PS1='\u@\h - \t [\W]:\$'  #for task3
+
+alias bk='cd $OLDPWD'     #for task 4 
+
+GREEN='\033[0;32m'        #for task 5
+PURPLE='\033[0;35m'
+NC='\033[0m'
+echo -e "${GREEN}
+      /||\ 
+     / || \ 
+ ___/  ||  \___
+_______||________
+${PURPLE}
+ _        _   _____   _      _____    _______    _ _    _ _    _____
+| |      | | |  ___| | |    |  ___|  |  ___  |  | | \  / | |  |  ___|
+| |  __  | | | |___  | |    | |      | |   | |  | |\ \/ /| |  | |___
+| | /  \ | | |  ___| | |    | |      | |   | |  | | \__/ | |  |  ___|
+| |/ /\ \| | | |___  | |__  | |___   | |___| |  | |      | |  | |___
+|_|_/  \_|_| |_____| |____| |_____|  |_______|  |_|      |_|  |_____|
+${NC}\n"
+

Lab 3/Inlab/readme-taskA.txt

+Completion:
+	bashrc loads bash_completion in /usr/share/ folder which has a script which has completion script. this is run on pressing tab.
+Commands:
+	See myBashCustomization.sh file.

Lab 3/Inlab/readme-taskB.txt

+Relevant File:
+	The relevant file inside the proc folder is meminfo.
+Command: 
+cat meminfo | grep -m 2 Mem |tr -d ' '| cut -d ':' -f 2  #if the working directory isn't proc , then write /proc/meminfo to the cat instead of simply meminfo
+
+Short Explanation:
+	grep -m 2 Mem limits the "grep search" results to 2 , which begin with Mem
+	tr -d removes the character argument following it , ' ' is the whitespace character, so tr -d ' ' removes all the whitespaces in the piped input
+	cut -d ':' delimits the input lines by ':', second field is selected by -f 2
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Lab 3/Inlab/readme-taskC.txt

+Commands: 
+ssh -X sreekar@mars.cse.iitb.ac.in  //for part 1 in task C
+
+subl /tmp/lab3_inlab_C3.txt #used subl instead of gedit  //for part 3 in task C

Lab 3/Inlab/readme-taskD.txt

+Commands :-
+Step 3:
+	Ctrl+alt+T to open terminal , navigate to the location of infiniteLoop.sh and run
+	"chmod +x infiniteLoop.sh" ( only the part inside the quotes is the command ) to give us permissions to run the script. Next, run
+	 " ./infiniteLoop.sh & "  to run it in background.
+Step 4:
+	Run " pkill infiniteLoop.sh " to kill the process which was made to run in background.
+
+Step 5 extra credit:
+	Open another terminal tab or another terminal entirely ( Ctrl+Shift+T or Ctrl+Alt+T )
+	Then run "ps -A | grep cell" and take the process ID and run " kill -SIGKILL <pid> " where <pid> is the process id found earlier.
+	Alternate method: 
+	 Run " kill -SIGKILL `ps -A |grep cell | cut -d ' ' -f 1` " in another terminal/terminal-tab
+
+How we approached the task:
+ First thing was to figure out how to test my sample .sh scripts , quick check on google yielded the chmod command required. Next , simple experimenting with ps and pkill made us realize what we had to do. 
+ 	writing the infiniteLoop.sh :
+ 		This took quite a bit of time.Looking up while loop was easy, but leaving a while body empty is apparently unacceptable, so we introduced the sleep 1 command , which basically just waits ,to replace the blank echo we initially thought of.
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Lab 3/Inlab/readme.txt

+Group Info:
+	Team Invictus (16)
+	(Sreekar Garlapati,150050065),(Nagendra Reddy,150050067),(Sai Prakash,150050075)
+
+Honor code:
+	I pledge on my honour that I have not taken or given any unauthorized assistance on this assignment or the previous ones.		      Sai Prakash(150050075)
+
+	I , Sreekar Garlapati, solemnly pledge on my honor that I have !(given V taken) any unauthorized assistance on this assignment or on any of the previous ones. -Sreekar Garlapati (150050065)
+
+	I pledge on my honour that I have not taken or given any unauthorized assistance on this assignment or the previous ones.			Nagendra Reddy (150050067)
+Percentage:
+	150050065:100%
+	150050067:100%
+	150050075:100%
+
+Citations:
+https://stackoverflow.com/questions/5947742/how-to-change-the-output-color-of-echo-in-linux
+
+man pages of grep cut etc
+
+Readme :
+Task A:
+	Completion:
+		bashrc loads bash_completion in /usr/share/ folder which has a script which has completion script. this is run on pressing tab.
+	Commands:
+		See myBashCustomization.sh file.
+Task B:
+	Relevant File:
+		The relevant file inside the proc folder is meminfo.
+	Command: 
+	cat meminfo | grep -m 2 Mem |tr -d ' '| cut -d ':' -f 2  #if the working directory isn't proc , then write /proc/meminfo to the cat instead of simply meminfo
+
+	Short Explanation:
+		grep -m 2 Mem limits the "grep search" results to 2 , which begin with Mem
+		tr -d removes the character argument following it , ' ' is the whitespace character, so tr -d ' ' removes all the whitespaces in the piped input
+		cut -d ':' delimits the input lines by ':', second field is selected by -f 2
+
+Task C:
+	Commands: 
+	ssh -X sreekar@mars.cse.iitb.ac.in  //for part 1 in task C
+
+	subl /tmp/lab3_inlab_C3.txt #used subl instead of gedit  //for part 3 in task C
+
+	See screenshot
+
+Task D:
+	Commands :-
+	Step 3:
+		Ctrl+alt+T to open terminal , navigate to the location of infiniteLoop.sh and run
+		"chmod +x infiniteLoop.sh" ( only the part inside the quotes is the command ) to give us permissions to run the script. Next, run
+		 " ./infiniteLoop.sh & "  to run it in background.
+	Step 4:
+		Run " pkill infiniteLoop.sh " to kill the process which was made to run in background.
+
+	Step 5 extra credit:
+		Open another terminal tab or another terminal entirely ( Ctrl+Shift+T or Ctrl+Alt+T )
+		Then run "ps -A | grep cell" and take the process ID and run " kill -SIGKILL <pid> " where <pid> is the process id found earlier.
+		Alternate method: 
+		 Run " kill -SIGKILL `ps -A |grep cell | cut -d ' ' -f 1` " in another terminal/terminal-tab
+
+	How we approached the task:
+	 First thing was to figure out how to test my sample .sh scripts , quick check on google yielded the chmod command required. Next , simple experimenting with ps and pkill made us realize what we had to do. 
+	 	writing the infiniteLoop.sh :
+	 		This took quite a bit of time.Looking up while loop was easy, but leaving a while body empty is apparently unacceptable, so we introduced the sleep 1 command , which basically just waits ,to replace the blank echo we initially thought of.
\ No newline at end of file

Lab 3/Outlab/readme.txt

+Group Info:
+	Team Invictus (16)
+	(Sreekar Garlapati,150050065),(Nagendra Reddy,150050067),(Sai Prakash,150050075)
+
+Reflection Essay:
+	Task A:
+		This task was fairly easy and had a variety of options to be used by us.Few basic commands of find give us an idea of what to do here.
+	Task B: 
+		 This was a tough one at first. By the time we completed this task , we became fairly good at writing reg expressions. 
+	Task C:
+		This was fairly easy and explored the versatility of linux commands ( rm, in this case )
+	Task D:
+		This took quite some time and in the end we realized the small mistake we were making all along. Not a tough one but a tricky one to get past indeed.
+	Task E:
+		Transferring the files was one thing (which was pretty easy), using a single command on either side to do so seemed easy but isnt easy at all.Hours spent and still no luck on our side.
+	Task F:
+		This task made us familiar with mime-types which are used to find the extensions and the usage of the command mv to rename files.
+	Task G:
+		This task taught us an elementary use of the command awk, rest was straightforward after completing the previous tasks
+	Task H:
+		Another interesting application of sed(substitution).
+	Task I:
+		Basic use of unzip, displaying only the correct password was a challenge.
+
+Citations :
+	A :
+		http://www.tecmint.com/35-practical-examples-of-linux-find-command/
+		http://www.grymoire.com/Unix/Permissions.html
+	B:
+		https://linuxconfig.org/learning-linux-commands-sed
+		http://www.grymoire.com/Unix/Sed.html#uh-58
+		http://www.thegeekstuff.com/2011/10/grep-or-and-not-operators/
+		http://www.linuxnix.com/regular-expressions-linux-i/
+	C:
+		man page of rm
+	D:
+		http://askubuntu.com/questions/183786/bash-script-to-login-to-webpage
+	E:
+		https://nmap.org/ncat/guide/ncat-usage.html
+	F:
+		https://stackoverflow.com/questions/2264428/converting-string-to-lower-case-in-bash-shell-scripting
+	G:
+		https://unix.stackexchange.com/questions/52762/trying-to-sort-on-two-fields-second-then-first
+		https://stackoverflow.com/questions/4304917/how-to-print-last-two-columns-using-awk
+	H:
+		none
+	I:
+		man page of unzip
+		http://www.unix.com/shell-programming-and-scripting/43379-suppress-error-message-unzip.html
+
+Honor code:
+	I pledge on my honour that I have not taken or given any unauthorized assistance on this assignment or the previous ones.		      Sai Prakash(150050075)
+
+	I , Sreekar Garlapati, solemnly pledge on my honor that I have !(given V taken) any unauthorized assistance on this assignment or on any of the previous ones. -Sreekar Garlapati (150050065)
+
+	I pledge on my honour that I have not taken or given any unauthorized assistance on this assignment or the previous ones.			Nagendra Reddy (150050067)
+Percentage:
+	150050065:100%
+	150050067:100%
+	150050075:100%
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Lab 3/Outlab/taskA.txt

+Name of city: Tokyo
+Path where the command was executed : ~/Earth/Asia/Japan
+Command: find -type f -size +50k -size -100k -iname 't*' -perm 400
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Lab 3/Outlab/taskB.txt

+GRASS Sceptile
+~/Earth/Asia/China
+cat Shanghai | sed '/[bBmM]/d' | grep -i '^grass [a-z]\{6,10\}$\|^water [a-z]\{6,10\}$'
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Lab 3/Outlab/taskC.txt

+Magikarp
+rm -R -- */
+rm A*
+rm -f {1..20}
+rm *.jpg
+cat * > ultraball.html

Lab 3/Outlab/taskD.txt

+Squirtle
+alpha omega
+curl 'https://www.cse.iitb.ac.in/~sharat/current/cs251/Assign/Lab03/support/verify.php' --data 'username=alpha&password=omega'  
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Lab 3/Outlab/taskE.txt

+cf3c122f1dabdc0fc4e1c37a25556bc8
+f24109a62a0422577119abeb0db4f801
+10.4.0.22 #Laptop Bulbasaur
+10.129.3.5 #Laptop Slowpoke
+ncat -l <Bulbasaur >Slowpoke
+ncat 10.4.0.22 <Slowpoke >Bulbasaur

Lab 3/Outlab/taskE2.txt

+cf3c122f1dabdc0fc4e1c37a25556bc8
+f24109a62a0422577119abeb0db4f801
+10.4.0.22
+10.129.3.5
+ncat -l <Bulbasaur , ncat -l >Slowpoke
+ncat 10.4.0.22 >Bulbasaur , ncat 10.4.0.22 <Slowpoke
+#README : The commands are to be executed in a particular order. First open listening on laptop-bulbasaur , next run sending on laptop-slowpoke. then listening on laptop-bulbasaur using the second command , then transfer from laptop-slowpoke again. 

Lab 3/Outlab/taskF.sh

+#!/bin/bash
+cd temp
+for i in $( ls );do
+	extension=$(file $i | cut -d ':' -f2 | cut -d ' ' -f2)
+	extension=${extension,,}
+	filename="$i.$extension"
+	mv $i $filename
+done

Lab 3/Outlab/taskF.txt

+Rotom
+application/gzip,image/jpeg,text/html,text/x-c
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Lab 3/Outlab/taskG.txt

+Magikarp
+ls -l |sort -k7 -nk8 | sed 1d |awk '{print $5}' | tr '\n' ' '

Lab 3/Outlab/taskH.txt

+sed -e 's/[fF]lying\|[fF]ighting/255 0 0/g' -e 's/Atk:1[0-9][0-9]\|Sp.A:1[0-9][0-9]\|Def:1[0-9][0-9]\|Sp.D:1[0-9][0-9]/255 8 153/g' -e 's/HP-\([1-9][0-9]\{0,2\}\)\/[1-9][0-9]\{0,2\}/\1/g'  corruptedPokémon.ppm >file.ppm
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Lab 3/Outlab/taskI.sh

+#!/bin/bash
+for i in $( cat dictionary.txt ) ;do
+	yes |head -n 1 | unzip -oqq -P $i legendaryPokemon.zip > /dev/null 2>&1 && echo $i
+done

Lab 3/Outlab/taskI.txt

+Mewtwo
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