AnisseTIL on Linux you cannot rely on the timestamps of files in /proc/<pid> to give you information about a process start time: those might be reset on suspend of if a process gets a SIGSTOP.
Instead, one should look at the 22nd field of /proc/pid/stat: starttime.
But it gives you the process start time in system clock ticks, not seconds. So you must divide it by sysconf(_SC_CLK_TCK) to get seconds.
But wait, it gives you the start time in ticks since boot. So you must use clock_gettime(CLOCK_BOOTTIME, ...) to get a usable comparison to the current time.
Anyway, now progressrm should be more accurate at guessing the file arguments progression (and remaining time) of rm commands.
