/* BB_AUDIT SUSv3 N/A */
/* BB_AUDIT GNU defects -- only option -n is supported. */
+//usage:#define watch_trivial_usage
+//usage: "[-n SEC] [-t] PROG ARGS"
+//usage:#define watch_full_usage "\n\n"
+//usage: "Run PROG periodically\n"
+//usage: "\n -n Loop period in seconds (default 2)"
+//usage: "\n -t Don't print header"
+//usage:
+//usage:#define watch_example_usage
+//usage: "$ watch date\n"
+//usage: "Mon Dec 17 10:31:40 GMT 2000\n"
+//usage: "Mon Dec 17 10:31:42 GMT 2000\n"
+//usage: "Mon Dec 17 10:31:44 GMT 2000"
+
#include "libbb.h"
// procps 2.0.18:
printf("\033[H""\033[J");
if (!(opt & 0x2)) { // no -t
const unsigned time_len = sizeof("1234-67-90 23:56:89");
- time_t t;
// STDERR_FILENO is procps3 compat:
// "watch ls 2>/dev/null" does not detect tty size
free(header);
header = xasprintf("Every %us: %-*s", period, (int)width, cmd);
}
- time(&t);
- if (time_len < width)
- strftime(header + width - time_len, time_len,
- "%Y-%m-%d %H:%M:%S", localtime(&t));
+ if (time_len < width) {
+ strftime_YYYYMMDDHHMMSS(
+ header + width - time_len,
+ time_len,
+ /*time_t*:*/ NULL
+ );
+ }
// compat: empty line between header and cmd output
printf("%s\n\n", header);