Bash shell script to convert all lowercase letters in a file to uppercase letters
kw.sh
#!/bin/bashecho'___________________________________________'echo'Script to convert Lowercase to Uppercase'echo'___________________________________________'echo"1.Lowercase to Uppercase"echo"2.Exit"echo'___________________________________________'echo-e"Enter Your Choice \c"read ch
case"$ch"in
1)echo-e"Enter The Filename \c"read f1
if[-f$f1]then
echo"Converting Lowercase to Uppercase"tr'[a-z]''[A-Z]' <$f1else
echo"$f1 File Does't Exists"fi;;
2)exit;;esac
Output
kodingwindow@kw:~$ bash kw.sh
___________________________________________
Script to convert Lowercase to Uppercase
___________________________________________
1.Lowercase to Uppercase
2.Exit
___________________________________________
Enter Your Choice 1
Enter The Filename kw.txt
Converting Lowercase to Uppercase
SHELL SCRIPTING IS VERY EASY
kodingwindow@kw:~$
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