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Add -i and -t options to date for isodate and isotime display.

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google 2012-09-02 23:08:14 +12:00
parent cdb7bdde96
commit dfc348c4e2
2 changed files with 23 additions and 8 deletions
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6
sys/man/1/date
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@ -24,6 +24,12 @@ Report Greenwich Mean Time (GMT) rather than local time.
.B -n
Report the date as the number of seconds since the
epoch, 00:00:00 GMT, January 1, 1970.
.TP
.B -i
Report the date as ISO-8601 without time and timezone suffix.
.TP
.B -t
Report the date as ISO-8601 with time and timezone suffix.
.PP
The conversion from Greenwich Mean Time to local time depends on the
.B $timezone

25
sys/src/cmd/date.c
View file

@ -1,17 +1,19 @@
#include <u.h>
#include <libc.h>
int uflg, nflg;
int uflg, nflg, iflg, tflg;
void
main(int argc, char *argv[])
{
ulong now;
Tm *tm;
ARGBEGIN{
case 'n': nflg = 1; break;
case 'u': uflg = 1; break;
default: fprint(2, "usage: date [-un] [seconds]\n"); exits("usage");
case 't': tflg = 1; /* implies -i */
case 'i': iflg = 1; break;
default: fprint(2, "usage: date [-itun] [seconds]\n"); exits("usage");
}ARGEND
if(argc == 1)
@ -21,10 +23,17 @@ main(int argc, char *argv[])
if(nflg)
print("%ld\n", now);
else if(uflg)
print("%s", asctime(gmtime(now)));
else
print("%s", ctime(now));
else if(iflg) {
tm = uflg ? gmtime(now) : localtime(now);
if(tflg)
print("%s\n", isotime(tm));
else
print("%s\n", isodate(tm));
} else {
if(uflg)
print("%s", asctime(gmtime(now)));
else
print("%s", ctime(now));
}
exits(0);
}