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

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This commit is contained in:
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 .B -n
Report the date as the number of seconds since the Report the date as the number of seconds since the
epoch, 00:00:00 GMT, January 1, 1970. 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 .PP
The conversion from Greenwich Mean Time to local time depends on the The conversion from Greenwich Mean Time to local time depends on the
.B $timezone .B $timezone

25
sys/src/cmd/date.c
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@ -1,17 +1,19 @@
#include <u.h> #include <u.h>
#include <libc.h> #include <libc.h>
int uflg, nflg; int uflg, nflg, iflg, tflg;
void void
main(int argc, char *argv[]) main(int argc, char *argv[])
{ {
ulong now; ulong now;
Tm *tm;
ARGBEGIN{ ARGBEGIN{
case 'n': nflg = 1; break; case 'n': nflg = 1; break;
case 'u': uflg = 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 }ARGEND
if(argc == 1) if(argc == 1)
@ -21,10 +23,17 @@ main(int argc, char *argv[])
if(nflg) if(nflg)
print("%ld\n", now); print("%ld\n", now);
else if(uflg) else if(iflg) {
print("%s", asctime(gmtime(now))); tm = uflg ? gmtime(now) : localtime(now);
else if(tflg)
print("%s", ctime(now)); 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); exits(0);
} }