Linux cat command.
cat command is used to display the content of text files and to combine several files to one file.
The cat command does not accept directories.
cat command syntax
$ cat [options] file1 [file2...]
cat command options
cat command main options:
| option | description |
|---|---|
| cat -b | add line numbers to non blank lines |
| cat -n | add line numbers to all lines |
| cat -s | squeeze blank lines to one line |
| cat -E | show $ at the end of line |
| cat -T | show ^I instead of tabs |
cat command examples
View text file data:
$ cat list1.txtmilkbreadapples$ cat list2.txthousecar$
Combine 2 text files:
$ cat list1.txt list2.txtmilkbreadappleshousecar$
Combine 2 text files to another file:
$ cat list1.txt list2.txt > todo.txt$