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

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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
This commit is contained in:
Brian Feldman 2000-02-26 21:29:44 +00:00
parent 80d21dc41b
commit a6d413e7f8
2 changed files with 13 additions and 1 deletions
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2
bin/dd/args.c
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@ -82,8 +82,10 @@ static const struct arg {
{ "files", f_files, C_FILES, C_FILES },
{ "ibs", f_ibs, C_IBS, C_BS|C_IBS },
{ "if", f_if, C_IF, C_IF },
{ "iseek", f_skip, C_SKIP, C_SKIP },
{ "obs", f_obs, C_OBS, C_BS|C_OBS },
{ "of", f_of, C_OF, C_OF },
{ "oseek", f_seek, C_SEEK, C_SEEK },
{ "seek", f_seek, C_SEEK, C_SEEK },
{ "skip", f_skip, C_SKIP, C_SKIP },
};

12
bin/dd/dd.1
View file

@ -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.