NICE Section: Linux Programmer's Manual (2) Updated: March 28, 2025 Index   NAME nice - change process priority   SYNOPSIS #include <unistd.h> int nice(int inc);   DESCRIPTION nice adds inc to the priority for the calling pid. Only the superuser may specify a negative increment, or priority increase. Note that internally, a higher number is a higher priority. Do not confuse this with the priority scheme as used by the nice interface.   RETURN VALUE On success, zero is returned. On error, -1 is returned, and errno is set appropriately.   ERRORS EPERM A non-super user attempts to do a priority increase, a numerical decrease, by supplying a negative inc.   CONFORMING TO SVr4, SVID EXT, AT&T, X/OPEN, BSD 4.3. SVr4 documents an additional EINVAL error code.   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION RETURN VALUE ERRORS CONFORMING TO SEE ALSO This document was created by using the manual pages. Time: 11:56:06 GMT, March 24, 2025