shell - Malaeb
ShellShellShell.
May 02, 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
2.shell shellshell .
Linux shell Linux shell 1.
$? $?01 .
Shell Linux LinuxLinuxShellLinux.
Key Insights
shellClinuxshellshell .
Linux ShellPythonShellLinuxLinux.
