Shell Getting Started Tutorial: Shell variables
Shell Getting Started Tutorial: Special variables in the shell
Shell Getting Started Tutorial: Shell's basic structure
Shell Getting Started Tutorial: Command replace $ () and '
Shell Getting Started Tutorial: arithmetic operations
Shell Getting Started Tutorial: Process Control (1) End state of a command
Shell Getting Started Tutorial: Process Control (2) The wording "emphasis" of conditional judgment
Shell Getting Started Tutorial: Process Control (3) The true and false value of conditional judgment "focus"
Shell Getting Started Tutorial: Process Control (4) Case condition judgment
Shell Getting Started Tutorial: Process Control (5) for loop
Shell Getting Started Tutorial: Process Control (6) while loop
Shell Getting Started Tutorial: Process Control (7) Break and continue
Shell Getting Started Tutorial: Shell functions in a detailed
Shell Getting Started Tutorial: The return value of a shell function
Shell standard output, standard error >/dev/null 2>&1
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Common Linux Command Collection