How to create a file
touch filename
Explanation: touch used to create a file
How to create multiple files at a time
touch Math's Physics Chemistry Social
touch file {1..1000}
Explanation : We can create multiple files at a time
It will create 1000 files at a time in the current directory
Command to display the contents of the file
cat filename
cat -n filename
cat -b filename
Explanation: It will display from beginning of the line to end of the line forward direction
-n flag is will give you the line number
-b flag will give you line numbers only for non-blank lines
Command to display form end of the file to beginning of the file
tac filename
Explanation : It will display from end of the file to beginning of the file
Redirecting the output of the command to a file
cat file > output.text
Explanation: file content is redirected to the output.text
Command to appending the content
cat filename >> output.text
Explanation: It will to the end of the line
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