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ShellShellShell.
Apr 30, 2026
ShellShellShell.
When going through one shell script, I saw the term "$?". What is the significance of this term?
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.
Understanding the Context
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Linux shell Linux shell 1.
$? $?01 .
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