cat command in linux

cat command: This is the most basic command in linux is use to create a file, view the content of file.

Create file using cat command
cat > file1

Press Ctrl+d to save file

Append new value in file
cat >>file1

View file output
cat file1

Redirect output of file in another file
cat file1 >file2

display file output with line no 

cat -n file1

Display file output with line no
cat -b file1  (-b do not count blank line)

print all file
cat *
cat *.txt