Robot
/
bash-guide
mirror of https://github.com/Idnan/bash-guide.git
2
0
Fork 0
Code Issues Releases Wiki Activity

add table of content

This commit is contained in:
Adnan Ahmed 2017-04-01 12:44:11 +04:00 committed by GitHub
parent 08ad1e47ee
commit c1f00b046f
1 changed files with 20 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
README.md
View File

@ -1,3 +1,19 @@
## Table of Contents
1. [Bash Basics](#1-bash-basics)
1. [File Commands](#11-file-commands)
1. [Directory Commands](#12-directory-commands)
1. [SSH, System Info & Network Commands](#13-ssh-system-info--network-commands)
1. [Basic Shell Programming](#2-basic-shell-programming)
1. [Variables](#21-variables)
1. [String Substitution](#22-string-substitution)
1. [Functions](#23-functions)
1. [Conditionals](#24-conditionals)
1. [Loops](#25-loops)
1. [Process Handling](#3-process-handling)
1. [Tricks](#4-tricks)
1. [Debugging](#5-debugging)
This is first line that you will in bash script files called `shebang`. The shebang line in any script determines the script's ability to be executed like an standalone executable without typing sh, bash, python, php etc beforehand in the terminal. This is first line that you will in bash script files called `shebang`. The shebang line in any script determines the script's ability to be executed like an standalone executable without typing sh, bash, python, php etc beforehand in the terminal.
``` ```
@ -514,7 +530,7 @@ ${variable//pattern/string} # the longest match to pattern in variable is replac
${#varname} # returns the length of the value of the variable as a character string ${#varname} # returns the length of the value of the variable as a character string
``` ```
## 2.3. Functions. ## 2.3. Functions
As in almost any programming language, you can use functions to group pieces of code in a more logical way or practice the divine art of recursion. Declaring a function is just a matter of writing function my_func { my_code }. Calling a function is just like calling another program, you just write its name. As in almost any programming language, you can use functions to group pieces of code in a more logical way or practice the divine art of recursion. Declaring a function is just a matter of writing function my_func { my_code }. Calling a function is just like calling another program, you just write its name.
Syntax: Syntax:
@ -650,7 +666,7 @@ kill PID # terminates process with specified PID
ps # prints a line of information about the current running login shell and any processes running under it ps # prints a line of information about the current running login shell and any processes running under it
ps -a # selects all processes with a tty except session leaders ps -a # selects all processes with a tty except session leaders
# 4. Tips and Tricks # 4. Tricks
## set an alias ## set an alias
Open `bash_profile` by running following command `nano ~/.bash_profile` Open `bash_profile` by running following command `nano ~/.bash_profile`
@ -664,8 +680,7 @@ source ~/.bashrc
cd hotellogs cd hotellogs
# 5. Debugging Shell Programs # 5. Debugging
You can easily debug the bash script by passing different options to `bash` command. For example `-n` will not run commands and check for syntax errors only. `-v` echo commands before running them. `-x` echo commands after command-line processing. You can easily debug the bash script by passing different options to `bash` command. For example `-n` will not run commands and check for syntax errors only. `-v` echo commands before running them. `-x` echo commands after command-line processing.
Syntax: Syntax:
@ -674,7 +689,6 @@ bash -n scriptname
bash -v scriptname bash -v scriptname
bash -x scriptname bash -x scriptname
``` ```
## Feedback # Feedback
Suggestions/improvements Suggestions/improvements
[welcome](https://github.com/idnan/lord-of-terminal/issues)! [welcome](https://github.com/idnan/lord-of-terminal/issues)!