Viewing File Contents

cat

cat [-n] <file-name>

    n : Display line numbers

• Displays the contents of the file.

cat a b > c              # Concatenate files "a" and "b" into the new file "c"
cat -n info.txt
cat -n info.txt | more   # Display one screenful at a time)

info

info <filename>

    n  : Next node
    p  : Previous node
    u  : Parent node 

    space  : Next node, or page-forward in a large node (if not already at the bottom)
    backspace  : Previous node, or page-backward in a large node (if not already at the top) 

less

less <file-name>

<command> | less

• Like more, but lets you scroll backwards as well as forwards

ls -al | less   # View the directory listings

more

more <file-name>

• Displays the contents of the file one screenful at a time; continue to the next page by pressing the space bar.

tail

tail <filename>

• By default, prints the last 10 lines of the file to standard output