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hexdump: automatically use -C when called as hd 

When invoking hexdump as hd enable the "Canonical" format to by
default, implying the -C option.

This is historic behaviour on Debian and apparently also on FreeBSD.
Some Debian users have asked for this to be restored, after Debian
switched to util-linux' hexdump and hd.

Signed-off-by: Chris Hofstaedtler <zeha@debian.org>
This commit is contained in:
Chris Hofstaedtler 2020-06-23 00:14:30 +00:00 committed by Karel Zak
parent c8b8326b07
commit d0aa83147a
2 changed files with 10 additions and 0 deletions
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3
text-utils/hexdump.1
View File

@ -67,6 +67,9 @@ by the same sixteen bytes in
format enclosed in
.RB ' | '
characters.
Invoking the program as
.B hd
implies this option.
.TP
\fB\-d\fR, \fB\-\-two\-bytes\-decimal\fR
\fITwo-byte decimal display\fR. Display the input offset in hexadecimal,

7
text-utils/hexdump.c
View File

@ -82,6 +82,13 @@ parse_args(int argc, char **argv, struct hexdump *hex)
{NULL, no_argument, NULL, 0}
};
if (!strcmp(program_invocation_short_name, "hd")) {
/* Canonical format */
add_fmt("\"%08.8_Ax\n\"", hex);
add_fmt("\"%08.8_ax \" 8/1 \"%02x \" \" \" 8/1 \"%02x \" ", hex);
add_fmt("\" |\" 16/1 \"%_p\" \"|\\n\"", hex);
}
while ((ch = getopt_long(argc, argv, "bcCde:f:L::n:os:vxhV", longopts, NULL)) != -1) {
switch (ch) {
case 'b':