20 Bash Script Examples This guide aims to give you an understanding of shell, bash, bash scripting concepts, and syntax, along with some valuable examples. Here, you will learn bash scripting from the ground up and how to automate processes on Linux computers. We will discuss variables, ...
命令parted -s /dev/sdb mklabel msdos可以将当前的分区表全部清空,然后创建成指定的分区表格式,这个非常有用。之前网上的方法:dd if=/dev/zero of=/dev/sdb bs=512 count=1这种方式是不能支持GPT table的,普通分区表可以。
These variables contain useful information, which can be used by a shell script to know about the environment in which it is running. Bash provides two kind of parameters. Positional Parameter Special Parameter In this article, let us discuss about bash positional parameter with the examples. This...
The code below requires bash script above. This code requires the API key, the data provider string, a region, and a base64 URL encoded TDS specified as arguments. The script uses these elements to build a JWT and submit a request to the API gateway. Note that the base64 URL encoded T...
/bin/bash2# Script to collect the status of lshw output from home servers3# Dependencies:4# * LSHW: http://ezix.org/project/wiki/HardwareLiSter5# * JQ: http://stedolan.github.io/jq/6#7# On each machine you can run something like this from cron (Don't know CRON, no worries: ...
install.sh, a bash script to be run: ./install.sh without argument download && compile && install the library build && install the module file ./install.sh clean: remove the temporary directories used for download and compilation ./install.sh module: build && install only the module file...
bash, any subsequent program that we run can read our setting, whether it is a shell script or not. A good example is the vipw command, which normally allows root to edit the system password file. By setting the EDITOR environment variable to the name of your favorite text editor, you ...
just uses the “until” keyword. We have provided the infinite until loop bash script below where we begin the script with the declaration of the variable “statement” and set it with the “false” value. Next, we have defined the “loop_no” variable which is set with the counter “0...
Given below are the list of ways of bash string length: 1. Using ${#string_name} Here string_name is the variable that contains the string to be manipulated. Syntax: ${#string_name} 2. Using keyword expr length Here bash has a keyword reserved to itself on evaluating a given expression...
Shell script - Bash difference or preferred negation, The shell waits for all commands in the pipeline to terminate before returning a value. In that sense, a: ! [ [ 2 -eq 2 ]] Is the negation (!) of the exit code of the whole [ [ (once all of it has been executed). Thus, ...