The expression "if [ $count -gt 0 ]" checks if count is .....

Question

BlackTom AI · Accepted Answer

The question asks what the test expression "if [ $count -gt 0 ]" is checking for in a shell script.
Option 1: "Greater than zero" — This is correct. The -gt operator means 'greater than' in numeric comparisons, so the condition is true when count is a number strictly larger than 0.
Option 2: "Greater or equal to zero" — This would use the -ge operator (greater than or equal to). Since the expression uses -gt, it does not include zero or negative values.
Option 3: "Equal to zero" — Equality would be tested with -eq. The -gt test explicitly checks for values greater than the specified number, not equal to it.
Option 4: "Not greater than zero" — This phrasing would correspond to count <= 0, which is not what -gt tests for. The -gt operator does the opposite: it requires count to be strictly greater than 0.
In summary, the expression evaluates to true only when count is a positive integer, i.e., greater than zero, and false for zero, negative numbers, or non-numeric inputs that cannot be interpreted as a number.

IWBS001 Script Examples Ungraded Quiz

The expression "if [ $count -gt 0 ]" checks if count is .....

查看解析

登录即可查看完整答案

类似问题

Given the following shell variable assignments, a=6; b=10; c=15 Which of the following conditions is true?

Given the following shell variable assignments, a=2; b=5; c=10 Which of the following conditions is true?

Given the following shell variable assignments, a=10; b=5; c=3 Which of the following conditions is true?

Which of the following shell scripts (if any) correctly prints TRUE if x and y are both equal to 10? Select all that apply.

In a consumer society, many adults channel creativity into buying things

Economic stress and unpredictable times have resulted in a booming industry for self-help products

People born without creativity never can develop it

A product has a selling price of $20, a contribution margin ratio of 40% and fixed cost of $120,000. To make a profit of $30,000. The number of units that must be sold is: Type the number without $ and a comma. Eg: 20000

更多留学生实用工具

考试浏览器助手

风格化写作助手

论文查重助手

文献引用助手

课堂转译助手

课堂笔记助手

Quiz搜索助手

学校历年真题

智能刷题助手

智能匹配练习

希望你的学习变得更简单