This introduction covers the following subjects:

• File and Directory Management—This section explains how to navigate, create, move, and explore files and directories on the system.

• File Permission Basics—This section explores file permissions and how the system uses them.

• Using a Text Editor—This section covers using a text editor effectively from the command line.

• Regex—This section covers regular expressions and how they are used for pattern matching.

• I/O Redirection—This section covers how to pipe commands and redirect output.

• Compression and Archiving—This section explains how to compress and archive files and directories.

The following RHCSA exam objectives are covered:

• Access a shell prompt and issue commands with the correct syntax

• Use input-output redirection (>, >>, |, 2>, and so on)

• Use grep and regular expressions to analyze text

• Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2

• Create and edit text files

• Create, delete, copy, and move files and directories

• Create hard and soft links

• List, set, and change standard ugo/rwx permissions

• Locate, read, and use system documentation including man, info, and files in /usr/share/doc