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Special Characters in Bash
source link: https://fann.im/blog/2023/05/08/special-characters-in-bash/
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Special Characters in Bash
Special Characters in Bash
May 8, 2023
$0: name of the script$1to$9, arguments to the script.$1is the first argument and so on.$@: all the arguments$#: number of arguments$?: return code of the previous command$$: process identification number (PID) for the current script
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