integer expression expected

In the shell script, when comparing with parameters, such as "[$temp-eq" IPhone "]", there may be an "integer expression expected" error. This is because these parameters:-GT,-lt,-eq comparisons are both numbers and variables, so the variable temp

To test the comparison of integer types in shell programming, the following test code is specially written: #! /Bin/sh # adding single quotation marks to variable values in shell. The difference between double quotation marks and double quotation

By its very nature, a regular expression (or RE) is a small, highly specialized programming language that is embedded in Python and implemented through the RE module. With this small language, you can specify rules for the set of strings that you

RegExp Direct volume and creation of objects As with strings and numbers, it is obvious that the original type of direct quantity for each value in the program represents the same value. A new object is created each time the program runs with the

  Preface: I was interested in regular expressions six months ago. I found a lot of information on the Internet, read a lot of tutorials, and finally found that his tutorial was very well written when I used regexbuddy, a regular expression tool,

Original author: a.m. kuchling (amk@amk.ca) Licensing: Authoring Sharing protocol Translation staff: Firehare Proofreading Staff: Leal Applicable version: Python 1.5 and subsequent versions http://wiki.ubuntu.org.cn/Python%E6%AD%A3%E5%88%99%E8%A1%A8%

2.4 Expression evaluation and type conversionMySQL allows you to write expressions that include constants, function calls, and table-column references. These values can be grouped using different types of operators, such as arithmetic or comparison

Expressions are the most important cornerstone of PHP. In PHP, almost anything written is an expression. The simplest but most precise way to define an expression is "anything that has value." The most basic form of expression is constants and

[Original address] New "orcas" Language Feature: lambda expressions[Original article publication date] Sunday, 2017l 08,200 7 pm Last month I started a post series to discuss some new VB and C # language features released as part of Visual Studio

An expression is PHP The most important cornerstone. In PHP programming, almost anything written is an expression. The simplest but most precise way to define an expression is "anything that has value."The most basic form of expression is constants