commit c619e168c9be1f7ecf9d4e1bc8f0a594f9ff9b57
parent 092c95b66c0dca434bde59d00420ace8a6d87050
Author: FRIGN <dev@frign.de>
Date: Fri, 9 Oct 2015 03:09:26 +0200
Update od(1)-documentation
Diffstat:
| M | od.1 | | | 28 | +++++++++++++++++----------- |
| M | od.c | | | 3 | ++- |
2 files changed, 19 insertions(+), 12 deletions(-)
diff --git a/od.1 b/od.1
@@ -1,4 +1,4 @@
-.Dd 2015-10-08
+.Dd 2015-10-09
.Dt OD 1
.Os sbase
.Sh NAME
@@ -6,28 +6,34 @@
.Nd octal dump
.Sh SYNOPSIS
.Nm
-.Op Fl A Ar d|o|x|n
-.Op Fl t Ar a|c|d|o|u|x
+.Op Fl A Ar addrformat
+.Op Fl t Ar outputformat...
.Op Fl v
-.Op Ar file...
+.Op Ar file ...
.Sh DESCRIPTION
.Nm
writes an octal dump of each
.Ar file
to stdout. If no
.Ar file
-is given, then
+is given
.Nm
reads from stdin.
.Sh OPTIONS
.Bl -tag -width Ds
-.It Fl A Ar d|o|x|n
-Display the address in base \fId\fRecimal | \fIo\fRctal |
-he\fIx\fRadecimal | \fIn\fRone. If unspecified, the default is octal.
-.It Fl t Ar a|c|d|o|u|x
-Display the content as n\fIa\fRmed character, \fIc\fRharacter, signed
+.It Fl A Ar addressformat
+.Ar addressformat
+is one of d|o|x|n and sets the address to be
+either in \fId\fRecimal, \fIo\fRctal, he\fIx\fRadecimal or \fIn\fRot
+printed at all. The default is octal.
+.It Fl t Ar outputformat
+.Ar outputformat
+is a list of a|c|d|o|u|x followed by a digit or C|S|I|L and sets
+the content to be in n\fIa\fRmed character, \fIc\fRharacter, signed
\fId\fRecimal, \fIo\fRctal, \fIu\fRnsigned decimal, or
-he\fIx\fRadecimal. If unspecified, the default is octal.
+he\fIx\fRadecimal format, processing the given amount of bytes or the length
+of \fIC\fRhar, \fIS\fRhort, \fII\fRnteger or \fIL\fRong.
+The default is octal with 4 bytes.
.It Fl v
Always set. Write all input data, including duplicate lines.
.El
diff --git a/od.c b/od.c
@@ -165,7 +165,8 @@ lcm(unsigned int a, unsigned int b)
static void
usage(void)
{
- eprintf("usage: %s", argv0);
+ eprintf("usage: %s [-A addressformat] [-t outputformat] "
+ "[-v] [file ...]\n", argv0);
}
int
