Echo usage in Linux

Echo usage in Linux

1. The echo command has two common options:-N, Indicating that the output is not followed by a line break. The other is-E, Indicating that the escape characters are processed in the corresponding way.-EThe escape characters are processed by common characters.

2. escape characters in echo output
\ BRemoves the leading space.
\ NLine feed
\ THorizontal Tab
\ VVertical Tab
\ CThe characters After \ c will not be output, and will not wrap after the output is complete.
\ ROutput carriage return (but you will find that the character before \ r is missing)
\Indicates that a warning sound is output.

3. redirection in echo
You can output the content to a file instead of a standard output.

Echo "hello world! "> Test1.tmp

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