Self-learning Linux Symbols summary

Linux Symbolic Summary simple and easy to use and efficient

; Delimiter for multiple commands

/root or Road strength separator

> Standard output redirection (data flow in the direction of the arrow), overwriting the original file

>> Chase Emphasis (data flow toward arrow), "End" of the original file, "append" content

< or < standard input redirection: Input redirection is used to change the input of the command, specify the input, followed by the file name

<< or << input redirection: followed by a string to indicate "input end" or ctrl+d to end the input

.. Top level Directory

. Current directory

| The pipeline passes the output of the previous command to the next command to continue processing

{} with echo print sequence echo{1..5}

Self-learning Linux Symbols summary