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linux:intro-to-bash-part-1 [2019/01/21 11:04]
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-<markdown> 
-# Intro to Bash 
-## Brief History 
  
-## Date: Fri Aug 31 2018 
- 
-- Written by Brian Fox for the GNU Project 
-- Based on the Bourne Shell (sh or /bin/sh) by Stephen Bourne, thus 
- Bash is the Bourne-Again Shell 
- - introduced scripting language abilities 
-- sh is based on the Thompson shell, written by Ken Thompson, the co- 
- inventor of Unix 
- 
-## Command Commands 
- 
-- `ls` : list command; list directory contents 
-- `cat` : concatenate files and print on the standard output 
-- `cp` : copy files and directories 
-- `mv` : move (rename) files 
-- `rm` : remove files or directories 
-- `rmdir` : remove empty directories 
-- `mkdir` : make directories 
-- `chmod` : change file mode bits 
-- `ln` : make links between files 
-- `man` : an interface to the on-line reference manuals 
-- `info` : read Info documents 
-- `chgrp` : change group ownership 
-- `date` : print or set the system date and time 
-- `df` : report file system disk space usage 
-- `more` : file perusal filter for crt viewing 
-- `less` : opposit of more 
-- `pwd` : print name of current/working directory 
-- `sudo` : execute a command as another user (generally as superuser) 
-- `su` : change user ID or become superuser 
-- `uname` : print system information 
-- `grep` : print lines matching a pattern 
-- `nano` : Nano's ANOther editor, an enhanced free Pico clone 
-- `ed` : line-oriented text editor / The GNU ed line editor (interactive / shell scripts) 
- - `info ed` : "Ed is the 'standard' text editor in the sense that it is the original 
- editor for Unix, and thus widely available" 
- 
-## Bash builtins 
- 
-- `help` : display information about builtin commands 
-- `echo` : write arguments to the standard output 
-- `printf` : formats and prints arguments under control of the format 
-- `read` : read a line from the standard input and split it into fields 
-- `type` : display information about command type 
-- `alias` : define or display aliases 
- 
-## File Hierarchy 
-### Linux Standards, not Bash related 
- 
-- /dev : directory is the location of special or device files 
-- /etc : contains configuration files 
-- /home : user home directories 
-- /lib : contains shared libraries needed to boot system and run 
- commands in the root filesystem (e.g., in /bin and /sbin) 
-- /media : mount point for removeable media 
-- /mnt : mount point for temorarily mounted filesystem 
-- /opt : add-on application software packages 
-- /root : home directory for the root user 
-- /sbin : system binaries 
-- /srv : data for services provided by this system 
-- /tmp : temporary files for applications, etc. lost app close or rebooting 
-- /usr : user commands/binaries, and libraries 
-- /var : contains variable data: logs, websites, system mail, application cache 
-- / : root directory (all directories are a subset of this one) 
-- /bin : essential user command binaries (for all users) 
-- /proc : process and system info 
- 
-## Bash Files 
- 
-- /bin/bash : the bash executable 
-- /etc/profile : the systemwide initialization file, executed for login shells 
-- /etc/bash.bashrc : systemwide per-interactive-shell startup file 
-- /etc/bash.bash.logout : systemwide login shel cleanup file, when login shell exits 
-- ~/.bash_profile : personal init file for login shells 
-- ~/.bashrc : individual per-interactive-shell startup file 
-- ~/.bash_logout : individual login shell cleanup file, when login shell exits 
-- ~/.inputrc : individual readline init files 
-</markdown> 
linux/intro-to-bash-part-1.1548086697.txt.gz ยท Last modified: 2019/01/21 11:04 by seanburns