2018-12-17 09:39:33 +08:00
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echo - display a line of text
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2018-12-18 09:58:24 +08:00
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Synopsis
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--------
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2018-12-17 05:08:41 +08:00
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echo [OPTIONS] [STRING]
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2018-12-18 09:58:24 +08:00
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2018-12-17 05:08:41 +08:00
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2018-12-19 10:44:30 +08:00
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Description
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------------
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2018-12-17 05:08:41 +08:00
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`echo` displays a string of text.
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The following options are available:
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- `-n`, Do not output a newline
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- `-s`, Do not separate arguments with spaces
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- `-E`, Disable interpretation of backslash escapes (default)
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- `-e`, Enable interpretation of backslash escapes
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2018-12-19 10:44:30 +08:00
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Escape Sequences
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------------
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2018-12-17 05:08:41 +08:00
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If `-e` is used, the following sequences are recognized:
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- `\` backslash
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- `\a` alert (BEL)
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- `\b` backspace
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- `\c` produce no further output
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- `\e` escape
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- `\f` form feed
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- `\n` new line
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- `\r` carriage return
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- `\t` horizontal tab
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- `\v` vertical tab
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- `\0NNN` byte with octal value NNN (1 to 3 digits)
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- `\xHH` byte with hexadecimal value HH (1 to 2 digits)
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2018-12-19 10:44:30 +08:00
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Example
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------------
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2018-12-17 05:08:41 +08:00
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\fish
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echo 'Hello World'
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\endfish
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Print hello world to stdout
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\fish
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echo -e 'Top\\nBottom'
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\endfish
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Print Top and Bottom on separate lines, using an escape sequence
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