diff options
| -rw-r--r-- | doc/coreutils.texi | 32 | ||||
| -rw-r--r-- | src/dd.c | 12 |
2 files changed, 24 insertions, 20 deletions
diff --git a/doc/coreutils.texi b/doc/coreutils.texi index ea35afe29..9f6c734ca 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -8062,22 +8062,29 @@ Swap every pair of input bytes. @sc{gnu} @command{dd}, unlike others, works when an odd number of bytes are read---the last byte is simply copied (since there is nothing to swap it with). -@item noerror -@opindex noerror -@cindex read errors, ignoring -Continue after read errors. +@item sync +@opindex sync @r{(padding with @acronym{ASCII} @sc{nul}s)} +Pad every input block to size of @samp{ibs} with trailing zero bytes. +When used with @samp{block} or @samp{unblock}, pad with spaces instead of +zero bytes. -@item nocreat -@opindex nocreat -@cindex creating output file, avoiding -Do not create the output file; the output file must already exist. +@end table + +The following ''conversions'' are really file flags +and don't effect and internal processing: +@table @samp @item excl @opindex excl @cindex creating output file, requiring Fail if the output file already exists; @command{dd} must create the output file itself. +@item nocreat +@opindex nocreat +@cindex creating output file, avoiding +Do not create the output file; the output file must already exist. + The @samp{excl} and @samp{nocreat} conversions are mutually exclusive. @item notrunc @@ -8085,11 +8092,10 @@ The @samp{excl} and @samp{nocreat} conversions are mutually exclusive. @cindex truncating output file, avoiding Do not truncate the output file. -@item sync -@opindex sync @r{(padding with @acronym{ASCII} @sc{nul}s)} -Pad every input block to size of @samp{ibs} with trailing zero bytes. -When used with @samp{block} or @samp{unblock}, pad with spaces instead of -zero bytes. +@item noerror +@opindex noerror +@cindex read errors, ignoring +Continue after read errors. @item fdatasync @opindex fdatasync @@ -499,18 +499,16 @@ Each CONV symbol may be:\n\ block pad newline-terminated records with spaces to cbs-size\n\ unblock replace trailing spaces in cbs-size records with newline\n\ lcase change upper case to lower case\n\ -"), stdout); - fputs (_("\ - nocreat do not create the output file\n\ - excl fail if the output file already exists\n\ - notrunc do not truncate the output file\n\ ucase change lower case to upper case\n\ swab swap every pair of input bytes\n\ + sync pad every input block with NULs to ibs-size; when used\n\ + with block or unblock, pad with spaces rather than NULs\n\ "), stdout); fputs (_("\ + excl fail if the output file already exists\n\ + nocreat do not create the output file\n\ + notrunc do not truncate the output file\n\ noerror continue after read errors\n\ - sync pad every input block with NULs to ibs-size; when used\n\ - with block or unblock, pad with spaces rather than NULs\n\ fdatasync physically write output file data before finishing\n\ fsync likewise, but also write metadata\n\ "), stdout); |