diff options
| -rw-r--r-- | toys/posix/ps.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/toys/posix/ps.c b/toys/posix/ps.c index 2e5338ea..279a947a 100644 --- a/toys/posix/ps.c +++ b/toys/posix/ps.c @@ -1448,11 +1448,12 @@ static void top_common( } plist[2], *plold, *plnew, old, new, mix; char scratch[16], *pos, *cpufields[] = {"user", "nice", "sys", "idle", "iow", "irq", "sirq", "host"}; - unsigned tock = 0; int i, lines, topoff = 0, done = 0; char stdout_buf[BUFSIZ]; + if (!TT.fields) perror_exit("no -o"); + // Avoid flicker and hide the cursor in interactive mode. if (!FLAG(b)) { setbuf(stdout, stdout_buf); |