Add iseek= and oseek= aliases for the preexisting skip= and seek=

operands.  Can _YOU_ tell skip= and seek= apart with 100% accuracy
every time?

This also seems to make us option-for-option compatible with the
Solaris dd(1).

Approved by:	jkh
Suggested by:	peter

1 files changed, 11 insertions, 1 deletions

diff --git a/bin/dd/dd.1 b/bin/dd/dd.1
index 32260e9..b34dcc6 100644
--- a/bin/dd/dd.1
+++ b/bin/dd/dd.1
@@ -96,10 +96,20 @@ bytes instead of the default 512.
 Read input from
 .Ar file
 instead of the standard input.
+.It Cm iseek= Ns Ar n
+Seek on the input file
+.Va n
+blocks.  This is a synonym for
+.Cm skip= Ns Ar n .
 .It Cm obs= Ns Ar n
 Set the output block size to
 .Va n
 bytes instead of the default 512.
+.It Cm oseek= Ns Ar n
+Seek on the output file
+.Va n
+blocks.  This is a synonym for
+.Cm seek= Ns Ar n .
 .It Cm of= Ns Ar file
 Write output to
 .Ar file
@@ -107,7 +117,7 @@ instead of the standard output.
 Any regular output file is truncated unless the
 .Cm notrunc
 conversion value is specified.
-If an initial portion of the output file is skipped (see the
+If an initial portion of the output file is seeked past (see the
 .Cm seek
 operand),
 the output file is truncated at that point.