How echo is used in Linux

Tag: Indicates EXT uses TMP this tracking var data length

1.echo commands We often use two of the options, one is -n , indicating that the output does not break after the line. The other is -e that the escape character is handled in a corresponding way, assuming that the -e escape character is treated as if it were normal characters.

Escape character at 2.echo output
\bmeans to delete the preceding space
\nRepresents a line break
\tRepresents a horizontal tab
\vRepresents a vertical tab
\cThe characters after the \c will not be output, and at the same time, the output will not be wrapped.
\rOutput carriage return (but you will find that the character in front of \ R is gone)
\aIndicates the output of a warning sound

Redirection in 3.echo
Ability to output content to a file rather than standard output

echo"hello world!" > test1.tmp

How echo is used in Linux