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| author |  ridiculousfish <corydoras@ridiculousfish.com> | 2013-03-05 17:37:44 -0800 |
|---|---|---|
| committer | ridiculousfish <corydoras@ridiculousfish.com> | 2013-03-05 17:37:44 -0800 |
| commit | b2012467b327db8d518f2b01eed3d529609f7349 (patch) | |
| tree | 7e53f8b732c434f8c26db3648fd35af16cd81690 /doc_src/echo.txt | |
| parent | daf5ef1bbd4b8ceb005294c512004010010897b8 (diff) | |
Document -e and -E flags for echo, and provide some examples
Diffstat (limited to 'doc_src/echo.txt')
| -rw-r--r-- | doc_src/echo.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/doc_src/echo.txt b/doc_src/echo.txt index 697e88ae..cfa9849e 100644 --- a/doc_src/echo.txt +++ b/doc_src/echo.txt @@ -9,8 +9,29 @@ Display a line of text. - \c -n, \c Do not output a newline - \c -s, \c Do not separate arguments with spaces +- \c -E, \c Disable interpretation of backslash escapes (default) +- \c -e, \c Enable interpretation of backslash escapes - \c -h, \c --help Display this help +\subsection echo-escapes Escape Sequences + +If -e is in effect, the following sequences are recognized: + +- \c \\\\ \c backslash +- \\a alert (BEL) +- \\b backspace +- \\c produce no further output +- \\e escape +- \\f form feed +- \\n new line +- \\r carriage return +- \\t horizontal tab +- \\v vertical tab +- \\0NNN byte with octal value NNN (1 to 3 digits) +- \\xHH byte with hexadecimal value HH (1 to 2 digits) + \subsection echo-example Example <tt>echo 'Hello World'</tt> Print hello world to stdout + +<tt>echo -e 'Top\\nBottom'</tt> Print Top and Bottom on separate lines, using an escape sequence |