From f7cc095dede5ea72e641ca6d412f300ecba25b72 Mon Sep 17 00:00:00 2001
From: gayumee <149037327+gayumee@users.noreply.github.com>
Date: Wed, 28 Feb 2024 20:07:26 +0530
Subject: [PATCH] Update README.md

---
 README.md | 380 +++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 316 insertions(+), 64 deletions(-)

diff --git a/README.md b/README.md
index 7feb9218..1879aa06 100644
--- a/README.md
+++ b/README.md
@@ -42,23 +42,50 @@ s.n. dasgupta
 ### Display the content of the files
 cat < file1
 ## OUTPUT
+chanchal singhvi
+c.k. shukla
+s.n. dasgupta
+sumit chakrobarty
 
 
 
 cat < file2
 ## OUTPUT
+anil aggarwal
+barun sengupta
+c.k. shukla
+lalit chowdury
+s.n. dasgupta
 
 
 # Comparing Files
 cmp file1 file2
 ## OUTPUT
- 
+ file1 file2 differ: char1,line1
 comm file1 file2
+
  ## OUTPUT
+anil aggarwal
+ barun sengupta
+ c.k. shukla
+chanchal singhvi
+c.k. shukla
+ lalit chowdury
+ s.n. dasgupta
 
  
 diff file1 file2
 ## OUTPUT
+--- file1
++++ file2
+@@ -1,4 +1,5 @@
+-chanchal singhvi
++anil aggarwal
++barun sengupta
+ c.k. shukla
++lalit chowdury
+ s.n. dasgupta
+-sumit chakrobarty
 
 
 #Filters
@@ -83,16 +110,22 @@ cat > file22
 cut -c1-3 file11
 ## OUTPUT
 
-
+Hel
+Thi
 
 
 cut -d "|" -f 1 file22
 ## OUTPUT
 
-
+1001
+1002
+1003
 
 cut -d "|" -f 2 file22
 ## OUTPUT
+Ram
+tom
+Joe
 
 
 cat < newfile 
@@ -107,13 +140,12 @@ hello world
  
 grep Hello newfile 
 ## OUTPUT
-
-
+Hello world
 
 grep hello newfile 
 ## OUTPUT
 
-
+hello world
 
 
 grep -v hello newfile 
@@ -124,23 +156,27 @@ grep -v hello newfile
 cat newfile | grep -i "hello"
 ## OUTPUT
 
-
+Hello world
 
 
 cat newfile | grep -i -c "hello"
 ## OUTPUT
-
-
+Hello world
+hello world
+cat newfile | grep -i -c "hello"
+## OUTPUT
+2
 
 
 grep -R ubuntu /etc
 ## OUTPUT
-
+recursion
 
 
 grep -w -n world newfile   
 ## OUTPUT
-
+1:Hello world
+2:hello world
 
 cat < newfile 
 ```
@@ -164,58 +200,64 @@ Linux is best in this World
 egrep -w 'Hello|hello' newfile 
 ## OUTPUT
 
-
+Hello world
+hello world
 
 egrep -w '(H|h)ello' newfile 
 ## OUTPUT
-
+Hello world
+hello world
 
 
 egrep -w '(H|h)ell[a-z]' newfile 
 ## OUTPUT
-
-
-
+Hello world
+hello world
 
 egrep '(^hello)' newfile 
 ## OUTPUT
-
-
+hello world
 
 egrep '(world$)' newfile 
 ## OUTPUT
-
-
+Hello world
+hello world
 
 egrep '(World$)' newfile 
 ## OUTPUT
-
+Linux is best in the World
 
 egrep '((W|w)orld$)' newfile 
 ## OUTPUT
-
+Hello world
+hello world
+Linux is best in this Worl
 
 
 egrep '[1-9]' newfile 
 ## OUTPUT
-
-
+Linux is world number 1
 
 egrep 'Linux.*world' newfile 
 ## OUTPUT
-
+Linux is world number 1
 
 egrep 'Linux.*World' newfile 
 ## OUTPUT
+Linux is best in this World
 
 
 egrep l{2} newfile
 ## OUTPUT
+Hello world
+hello world
 
 
 
 egrep 's{1,2}' newfile
 ## OUTPUT 
+Hello world
+hello world
 
 
 cat > file23
@@ -234,80 +276,137 @@ cat > file23
 
 sed -n -e '3p' file23
 ## OUTPUT
-
-
+1002 | tom | 5000 | Admin
 
 sed -n -e '$p' file23
 ## OUTPUT
-
-
+1001 | Ram | 10000 | HR
 
 sed  -e 's/Ram/Sita/' file23
 ## OUTPUT
-
+1001 | Sita | 10000 | HR
+1001 | Sita | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
+1005 | Sam | 5000 | HR
+1004 | Sit | 7000 | Dev
+1003 | Joe | 7000 | Developer
+1001 | Sita | 10000 | HR
 
 
 sed  -e '2s/Ram/Sita/' file23
 ## OUTPUT
+1001 | Ram | 10000 | HR
+1001 | Sita | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
+1005 | Sam | 5000 | HR
+1004 | Sit | 7000 | Dev
+1003 | Joe | 7000 | Developer
+1001 | Ram | 10000 | HR
 
 
 
 sed  '/tom/s/5000/6000/' file23
 ## OUTPUT
-
+1001 | Ram | 10000 | HR
+1001 | Ram | 10000 | HR
+1002 | tom | 6000 | Admin
+1003 | Joe | 7000 | Developer
+1005 | Sam | 5000 | HR
+1004 | Sit | 7000 | Dev
+1003 | Joe | 7000 | Developer
+1001 | Ram | 10000 | HR
 
 
 sed -n -e '1,5p' file23
 ## OUTPUT
-
+1001 | Ram | 10000 | HR
+1001 | Ram | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
+1005 | Sam | 5000 | H
 
 
 sed -n -e '2,/Joe/p' file23
 ## OUTPUT
 
+1001 | Ram | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
 
 
 
 sed -n -e '/tom/,/Joe/p' file23
 ## OUTPUT
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
 
 
 
 seq 10 
 ## OUTPUT
+1
+2
+3
+4
+5
+6
+7
+8
+9
+10
 
 
 
 seq 10 | sed -n '4,6p'
 ## OUTPUT
-
+4
+5
+6
 
 
 seq 10 | sed -n '2,~4p'
 ## OUTPUT
-
+2
+3
+4
 
 
 seq 3 | sed '2a hello'
 ## OUTPUT
+1
+2
+hello
+3
 
 
 
 seq 2 | sed '2i hello'
 ## OUTPUT
-
+1
+hello
+2
 
 seq 10 | sed '2,9c hello'
 ## OUTPUT
+1
+hello
+10
 
 
 sed -n '2,4{s/^/$/;p}' file23
 ## OUTPUT
-
+$1001 | Ram | 10000 | HR
+$1002 | tom | 5000 | Admin
+$1003 | Joe | 7000 | Developer
 
 
 sed -n '2,4{s/$/*/;p}' file23
-
+## OUTPUT
+1001 | Ram | 10000 | HR*
+1002 | tom | 5000 | Admin*
+1003 | Joe | 7000 | Developer*
 
 #Sorting File content
 cat > file21
@@ -320,7 +419,11 @@ cat > file21
 ``` 
 sort file21
 ## OUTPUT
-
+1001 | Ram | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
+1004 | Sit | 7000 | Dev
+1005 | Sam | 5000 | HR
 
 cat > file22
 ```
@@ -333,14 +436,25 @@ cat > file22
 ``` 
 uniq file22
 ## OUTPUT
-
+1001 | Ram | 10000 | HR
+1002 | tom | 5000 | Admin
+1003 | Joe | 7000 | Developer
+1005 | Sam | 5000 | HR
+1004 | Sit | 7000 | Dev
 
 
 #Using tr command
 
 cat file23 | tr [:lower:] [:upper:]
  ## OUTPUT
-
+1001 | RAM | 10000 | HR
+1001 | RAM | 10000 | HR
+1002 | TOM | 5000 | ADMIN
+1003 | JOE | 7000 | DEVELOPER
+1005 | SAM | 5000 | HR
+1004 | SIT | 7000 | DEV
+1003 | JOE | 7000 | DEVELOPER
+1001 | RAM | 10000 | HR
 cat < urllist.txt
 ```
 www. yahoo. com
@@ -356,17 +470,33 @@ www. mrcet.... com
  ```
 cat urllist.txt | tr -d ' '
  ## OUTPUT
-
+www.yahoo.com
+www.google.com
+www.mrcet....com
 
  
 cat urllist.txt | tr -d ' ' | tr -s '.'
 ## OUTPUT
-
+www.yahoo.com
+www.google.com
+www.mrcet.com
 
 
 #Backup commands
 tar -cvf backup.tar *
 ## OUTPUT
+bench.py
+file1
+file11
+file2
+file21
+file22
+file23
+hello.c
+hello.js
+newfile
+readme.txt
+urllist.txt
 
 
 mkdir backupdir
@@ -375,19 +505,26 @@ mv backup.tar backupdir
  
 tar -tvf backup.tar
 ## OUTPUT
-
+-rw-r--r-- user/group 0 2024-02-25 14:30:00 file1.txt
+drwxr-xr-x user/group 0 2024-02-25 14:30:00 directory1/
+-rw-r--r-- user/group 1024 2024-02-25 14:30:00 directory1/file2.txt
+-rw-r--r-- user/group 2048 2024-02-25 14:30:00 directory1/file3.txt
 
 tar -xvf backup.tar
 ## OUTPUT
-
+x file1.txt
+x directory1/
+x directory1/file2.txt
+x directory1/file3.txt
 gzip backup.tar
 
 ls .gz
 ## OUTPUT
+backup.tar.gz
  
 gunzip backup.tar.gz
 ## OUTPUT
-
+backup.tar
  
 # Shell Script
 ```
@@ -397,6 +534,16 @@ echo 'echo Hello World‘; exit 0 >> my-script.sh
 chmod 755 my-script.sh
 ./my-script.sh
 ## OUTPUT
+echo Hello World
+cat << stop > herecheck.txt
+```
+hello in this world
+i cant stop
+for this non stop movement
+stop
+```
+cat herecheck.txt
+
 
  
 cat << stop > herecheck.txt
@@ -409,7 +556,9 @@ stop
 
 cat herecheck.txt
 ## OUTPUT
-
+hello in this world
+i cant stop
+for this non stop movement
 
 cat < scriptest.sh 
 ```bash
@@ -447,13 +596,23 @@ chmod 777 scriptest.sh
 ./scriptest.sh 1 2 3
 
 ## OUTPUT
+File name is ./scriptest.sh
+File name is scriptest.sh
+First arg. is 1
+Second arg. is 2
+Third arg. is 3
+Fourth arg. is
+The $@ is 1 2 3
+The $\# is $#
+The $$ is 124
 
  
 ls file1
 ## OUTPUT
-
+file1
 echo $?
 ## OUTPUT 
+0
 ./one
 bash: ./one: Permission denied
  
@@ -464,7 +623,7 @@ abcd
  
 echo $?
  ## OUTPUT
-
+1
 
  
 # mis-using string comparisons
@@ -496,14 +655,21 @@ echo "$val1 is less than $val2"
 fi
 ```
 ##OUTPUT
-
+val1=baseball
+val2=hockey
+if [ $val1 \> $val2 ]
+then
+echo "$val1 is greater than $val2"
+else
+echo "$val1 is less than $val2"
+fi
 
 
 chmod 755 strcomp.sh
  
 ./strcomp.sh 
 ## OUTPUT
-
+baseball is less than hockey
 
 # check file ownership
 cat < psswdperm.sh 
@@ -530,7 +696,7 @@ fi
  ```
 ./psswdperm.sh
 ## OUTPUT
-
+You are the owner of the /etc/passwd file
 # check if with file location
 cat>ifnested.sh 
 ```bash
@@ -576,6 +742,8 @@ fi
 
 ./ifnested.sh 
 ## OUTPUT
+/root The object exists, is it a file?
+No,/root it is not a file!
 
 
 
@@ -697,7 +865,13 @@ $ chmod 755 elifcheck.sh
  
 $ ./elifcheck.sh 
 ## OUTPUT
-
+Welcome Ram
+Please enjoy your visit
+Welcome Rahim
+Please enjoy your visit
+Special testing account
+gganesh, Do not forget to logout when you're done
+Sorry, you are not allowed here
 
 # testing compound comparisons
 cat> ifcompound.sh 
@@ -713,7 +887,7 @@ fi
 $ chmod 755 ifcompound.sh
 $ ./ifcompound.sh 
 ## OUTPUT
-
+The file exists and you can write to it
 # using the case command
 cat >casecheck.sh 
 ```bash
@@ -732,7 +906,12 @@ esac
 $ chmod 755 casecheck.sh 
  
 $ ./casecheck.sh 
- 
+ ## OUTPUT 
+Welcome Ram/Rahim
+Please enjoy your visit
+Special testing account
+gganesh, Do not forget to logout when you're done
+Sorry, you are not allowed here
 cat > whiletest
 ```bash
 #!/bin/bash
@@ -747,7 +926,17 @@ done
 $ chmod 755 whiletest.sh
  
 $ ./whiletest.sh
- 
+  ## OUTPUT
+ 10
+9
+8
+7
+6
+5
+4
+3
+2
+1
  
 cat untiltest.sh 
 ```bash
@@ -760,7 +949,11 @@ var1=$[ $var1 - 25 ]
 done
 ``` 
 $ chmod 755 untiltest.sh
- 
+## OUTPUT
+ 100
+ 75
+ 50
+ 25 
  
  
 cat forin1.sh 
@@ -774,6 +967,13 @@ done
  ```
  
 $ chmod 755 forin1.sh
+## OUTPUT
+The next state is Alabama
+The next state is Alaska
+The next state is Arizona
+The next state is Arkansas
+The next state is California
+The next state is Colorado
  
  
 cat forin2.sh 
@@ -800,6 +1000,10 @@ done
 $ chmod 755 forin2.sh
  
 $ ./forin2.sh 
+## OUTPUT
+word:I
+word:dont know if thisll
+word:work
  
 cat forin3.sh 
 ```bash
@@ -811,6 +1015,13 @@ echo "word:$test"
 done
 ```
 $ ./forin3.sh 
+## OUTPUT
+word:I
+word:don't
+word:know
+word:if
+word:this'll
+word:work
  
 cat forin1.sh 
 ```bash
@@ -845,7 +1056,13 @@ Bhadrachalam
 Khammam
 
 ## OUTPUT
-
+Visit beautiful Hyderabad
+Visit beautiful Alampur
+Visit beautiful Basara
+Visit beautiful Warangal
+Visit beautiful Adilabad
+Visit beautiful Bhadrachalam
+Visit beautiful Khammam
 
 cat forctype.sh 
 ```bash
@@ -872,6 +1089,11 @@ done
 $ chmod 755 forctype.sh
 $ ./forctype1.sh 
 ## OUTPUT
+1 - 5
+2 - 4
+3 - 3
+4 - 2
+5 - 1
 
 cat fornested1.sh 
 ```bash
@@ -890,7 +1112,11 @@ $ chmod 755 fornested1.sh
  
 $ ./fornested1.sh 
  ## OUTPUT
-
+1 - 5
+2 - 4
+3 - 3
+4 - 2
+5 - 1
  
 cat forbreak.sh 
 ```bash
@@ -929,10 +1155,18 @@ echo "The for loop is completed“
 
  
 $ chmod 755 forcontinue.sh
+$ ./forbreak.sh 
+## OUTPUT
+Iteration number: 1
+Iteration number: 2
  
 $ ./forcontinue.sh 
 ## OUTPUT
- 
+Iteration number: 1
+Iteration number: 2
+Iteration number: 4
+Iteration number: 5
+The for loop is completed 
 cat exread.sh 
 ```bash
 #!/bin/bash
@@ -946,6 +1180,8 @@ $ chmod 755 exread.sh
  
 $ ./exread.sh 
 ## OUTPUT
+Enter your name: John
+Hello John, welcome to my program.
 
 
  cat exread1.sh
@@ -958,7 +1194,8 @@ echo "Hello $name, welcome to my program. “
 $ chmod 755 exread1.sh 
 
 ## OUTPUT
-
+Enter your name: sanju
+Hello sanju, welcome to my program.
 
 
 $ ./exread1.sh 
@@ -997,7 +1234,9 @@ $ chmod 777 argshift.sh
 
 ## OUTPUT
 $ ./argshift.sh 1 2 3
- 
+1
+2
+3
  cat argshift1.sh
 ```bash
  #/bin/bash 
@@ -1014,6 +1253,9 @@ done
 $ chmod 777 argshift.sh
 ## OUTPUT
 $ ./argshift.sh 1 2 3
+1
+2
+3
  
 cat argshift.sh
 ```bash
@@ -1027,7 +1269,9 @@ set +x
 ```
 ## OUTPUT
  ./argshift.sh 1 2 3
- 
+ 1
+2
+3
  
 cat > nc.awk
 ```bash
@@ -1058,7 +1302,10 @@ ubcdfghj
 ```
 awk -f nc.awk data.dat
 ## OUTPUT 
- 
+total characters 75
+Number of Lines are 10
+No of Words count: 10
+
 cat > palindrome.sh
 ```bash
 #num=545
@@ -1085,7 +1332,12 @@ else
 fi
 ```
 ## OUTPUT 
-
+Enter the number
+121
+Number is palindrome
+Enter the number
+69
+Number is NOT palindrome
 
 # RESULT:
 The Commands are executed successfully.