Integer Operators Operators Explanation -eq is equal to -ne is not equal to -gt is greater than -ge is greater than or equal to -lt is less than -le is less than or equal to String Operators Operators Explanation = is equal to == is equal to != is not equal to < less than <=...
速查表 | Bash cheat sheet! Bash Scripting Basics Here, we list some basic bash syntax with a brief explanation. It is a good starting point if you are a beginner. File Test Operators Here, we will list some helping testing operators for permissions, size, date, file type, or existence ...
When you use [[ keyword, you have to use string operators such as -eq, -lt. I think, (( is most preferred for arithmetic, because you can directly use operators such as ==, < and >. # Using [[ operator a=$1 b=$2 if [[ a -eq 1 || b -eq 2 ]] || [[ a -eq 3 ...
Integer Operators Operators Explanation -eq is equal to -ne is not equal to -gt is greater than -ge is greater than or equal to -lt is less than -le is less than or equal to String Operators Operators Explanation = is equal to == is equal to != is not equal to < less than <=...
String Operators = - Equals == - Equals -z - Is null -n - Is not null < - Is less than in ASCII alphabetical order > - Is greater than in ASCII alphabetical order If Statements #!/bin/bash if [[$foo = 'bar']]; then echo 'one' elif [[$foo = 'bar']] || [[$foo = '...
[expression]is used to combine multiple search criteria using logical operators (-and,-or,-not). It can be used to create complex search conditions. The most common command options are: The following example shows how to find all.txtdocuments larger than 1 kilobyte: ...
To write a command output into a file, use the redirection operators, represented with the > and >> symbols, and follow them with the file name: output > filenameoutput >> filenameBe careful when choosing the operator. If the file exists, the > operator will overwrite its content with ...
[ Free cheat sheet:Get a list of Linux utilities and commands for managing servers and networks. ] Wrapping up If you compare the two approaches, it seems logical to think that you should always/only use the$parens approach. And you might think that the backtick operators are only used by...
[ Readers also liked:Five ways to use redirect operators in bash] The basic loop commands in Bash scripts areforandwhile. forloops are typically used when you have a known, finite list, like a series of numbers, a list of items, or counters. ...
Powerlineis a great statusline plugin forVim editor, which is developed inPythonand provides status lines and prompts for many other applications such asbash,zsh,tmux, and many more. It enhances the appearance and functionality of theVimeditor by providing a customizable and informative status line...