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printf(1) Info page cause for long thought
From: |
Dan Jacobson |
Subject: |
printf(1) Info page cause for long thought |
Date: |
11 Feb 2002 16:45:02 +0800 |
User-agent: |
Gnus/5.09 (Gnus v5.9.0) Emacs/21.1 |
|
|`printf': Format and print data
|===============================
|
| `printf' does formatted printing of text. Synopsis:
|
| printf FORMAT [ARGUMENT]...
|
| `printf' prints the FORMAT string, interpreting `%' directives and
|`\' escapes in the same way as the C `printf' function. The FORMAT
$ /usr/bin/printf %c 54
5$ /usr/bin/printf %c , 54
,5$ /usr/bin/printf '"%c"' , 54
",""5"$
doesn't seem too similar to printf(3) here. I want the 54th ASCII
character emitted. The quoting biz is different too... some examples
wouldn't hurt your Info page... perhaps telling us what is going thru
printf(1)'s head above.
|argument is re-used as necessary to convert all of the given
|ARGUMENTs.
add examples.
| `printf' has one additional directive, `%b', which prints its
|argument string with `\' escapes interpreted in the same way as in the
|FORMAT string.
I seemed to have burned out those exact brain cells I needed to
understand this phrase somewhere in my youth. add examples.
| `printf' interprets `\0ooo' in FORMAT as an octal number (if OOO is
|0 to 3 octal digits) specifying a character to print, and `\xhhh' as a
|hexadecimal number (if HHH is 1 to 3 hex digits) specifying a character
|to print.
OK, but a picture is worth a 1000 words.
| An additional escape, `\c', causes `printf' to produce no further
|output.
Can we have some action shots of this in action on the new Info page?
| The only options are a lone `--help' or `--version'. *Note Common
|options::.
which don't work if intercepted by the bash built-in which should be
mentioned, unless it's "haze the newbie day".
--
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- printf(1) Info page cause for long thought,
Dan Jacobson <=