scp Command

In its place, scp has been replaced by other alternatives such as rsync and sftp.

egrep and fgrep Commands

The egrep and fgrep commands belong to the family of grep functions.

Here is a brief expression of what each command does.

The egrep command is a pattern-searching utility that prints out lines in a file that match a specific string or pattern.
The fgrep command searches for fixed character strings in a file or multiple files.

The egrep command has since been replaced by grep -E while fgrep has been replaced by grep -F.