Intro to Bash
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Bash is a command line shell that allows users to interact with and manage a Linux operating system. It can be used to edit files and system configurations, monitor and manage processes, run scripts, and more. Common bash commands include ls to list directories, cd to change directories, cat to output file contents, and man to view command manuals. The demo section provides a hands-on experience using bash commands.
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Intro to Bash
- 2. Overview ● What is bash? ● What can you do with bash? ● Why do we use bash? ● Common commands in bash ● Demo ● Features to look into
- 3. What is bash? (Bourne again shell) Bash was a replacement for the bourne shell. Bash is a command processor and runs command language. Bash is the most common login shell for most linux distributions.
- 4. What you can do with it ● Edit the file system. ● Monitor processes. ● Edit system configurations. ● Parse contents of files ● Run custom scripts ● Etc.
- 5. Why Bash? Why do we use bash/why do we want to learn it? ● Fast/Resource efficient ● No need for a complicated GUI ● GUI-less operating system ● Verbose ● More direct access
- 6. Common commands ● ls: List the current working directory ● cd <directory>: Changes from the current directory to the specified one. ● Cat <file>: Prints the contents of the file to standard out ● Echo <String>: Prints the string to standard out ● Less <file>: Read the contents of the file in a text viewer. ● Man <command>: Bring up the manual page for the specified command. ● Sudo <command>: Runs the specified command with escalated privileges.
- 8. Features to look at ● Piping commands ● Backgrounding processes ● Package managers ● Crontabs ● Command flags
Editor's Notes
- #4: Created in 1989 Brian Fox Bourne shell is sh and bash is bash Command processor is a means of interacting with a computer programming or CLI Command language is for job control in computing. Bash runs command languages. Shell shock