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0304135d2b
Instead of informing the bell character (hex 07), the example was using
an escaped \ followed by x07.
$ echo \\x07
\x07
$ echo \x07
$ echo \x07 | od -a
0000000 bel nl
0000002
$
* docs: Use \u instead of \\u
Instead of informing the Unicode character 慡, this example was using an
escaped \ followed by u6161.
$ echo \\u6161
\u6161
$ echo \u6161
慡
Before:
$ string escape --style=var 'a1 b2'\\u6161 | string unescape --style=var
a1 b2\u6161
Now:
$ string escape --style=var 'a1 b2'\u6161 | string unescape --style=var
a1 b2慡
77 lines
1.2 KiB
ReStructuredText
77 lines
1.2 KiB
ReStructuredText
.. _cmd-echo:
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echo - display a line of text
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=============================
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Synopsis
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--------
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::
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echo [OPTIONS] [STRING]
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Description
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-----------
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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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Unlike other shells, this echo accepts ``--`` to signal the end of the options.
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Escape Sequences
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----------------
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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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Example
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-------
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::
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> echo 'Hello World'
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Hello World
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> echo -e 'Top\nBottom'
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Top
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Bottom
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> echo -- -n
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-n
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See Also
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--------
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- the :ref:`printf <cmd-printf>` command, for more control over output formatting
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