Computer History Notes - Herong's Tutorial Notes - v3.13, by Herong Yang
Bash Command Line Examples
This section provides some Bash shell command line examples with explanations.
Below are some Bash shell command line examples with explanations:
set Displays the values of all variables, global and local variables. env Displays the values of all environment (global) variables. echo $- Tests of shell mode. The shell is interactive, if it contains an 'i' in the value. alias ..='cd ..; pwd' Sets an alias command of ".." to change current directory to the parent directory. PS1=\$ Sets the prompt to be the dollar sign $ D=`pwd` Sets the current working directory to a local variable D. export D Exports the local variable D to be a global variable, so that any sub shells can use it. echo $D Displays the values of variable D. cat > myself (Type in some words about yourself) ^D Creates a file and lets you to enter text from the keyboard. cat myself Displays the contents of "myself" on the screen. sleep 200 ^C "Ctrl-C" cancels the execution of the sleep command. sleep 200 ^Z "Ctrl-Z" stops the execution of the sleep command and pushes it to background. sleep 200 & Runs the sleep command in the background. jobs Lists all background jobs. history Lists all previously executed command lines
Table of Contents
2002 - .NET Framework Developed by Microsoft
1995 - PHP: Hypertext Preprocessor Created by Rasmus Lerdorf
1995 - Java Language Developed by Sun Microsystems
1991 - WWW (World Wide Web) Developed by Tim Berners-Lee
1991 - Gopher Protocol Created by a University of Minnesota Team
1984 - X Window System Developed a MIT Team
1984 - Macintosh Developed by Apple Inc.
1983 - "Sendmail" Mail Transfer Agent Developed by Eric Allman
1979 - The Tcsh (TENEX C Shell) Developed by Ken Greer
►1978 - Bash (Bourne-Again Shell) Developed by Brian Fox
What Is Bash (Bourne-Again Shell)
Bash Shell Script File Examples
1978 - The C Shell Developed by Bill Joy
1977 - The Bourne Shell Developed by Stephen Bourne
1977 - Apple II Designed by Steve Jobs and Steve Wozniak
1976 - vi Text Editor Developed by Bill Joy
1974 - Internet by Vinton Cerf
1972 - C Language Developed by Dennis Ritchie
1971 - FTP Protocol Created by Abhay Bhushan
1970 - UNIX Operating System Developed by AT&T Bell Labs