How to make a short delay (for less than a second) in bash? The smallest time unit in sleep command is 1 sec. I am using bash 3.0 in SunOS 5.10.
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How to make a short delay (for less than a second) in bash? The smallest time unit in sleep command is 1 sec. I am using bash 3.0 in SunOS 5.10.
SunOS (Solaris) probably doesn’t have the GNU tools installed by default. You might consider installing them. It’s also possible that they’re already installed in your system, perhaps in some directory that isn’t in your default
$PATH. GNUsleepis part of the coreutils package.If you have Perl, then this:
should sleep for 500000 microseconds (0.5 second) — but the overhead of invoking perl is substantial.
For minimal overhead, I’d write a small C program that calls
usleep()ornanosleep(). Note thatusleep()might not handle intervals greater than 1 second.