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安裝中文字典英文字典辭典工具!
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When going through one shell script, I saw the term "$?" What is the significance of this term?
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Meaning of "=~" operator in shell script [duplicate] Ask Question Asked 13 years, 6 months ago Modified 12 years, 7 months ago
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What does echo $? mean in shell programming? true echo $? # echoes 0 false echo $? # echoes 1 From the manual: (acessible by calling man bash in your shell) ? Expands to the exit status of the most recently executed foreground pipeline By convention an exit status of 0 means success, and non-zero return status means failure Learn more about exit statuses on wikipedia There are other special
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I'm trying to learn shell scripting, and I need to understand someone else's code What is the $? variable hold? I can't Google search the answer because they block punctuation characters
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What does $# mean in shell? I have code such as if [ $# -eq 0 ] then I want to understand what $# means, but Google search is very bad for searching these kinds of things
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