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1.1 ! root 1: .TH NICE 1 ! 2: .CT 1 proc_man ! 3: .SH NAME ! 4: nice, renice, nohup \(mi run commands at low priority or immune to hangup ! 5: .SH SYNOPSIS ! 6: .B nice ! 7: [ ! 8: .BI - number ! 9: ] ! 10: .I command ! 11: [ ! 12: .I argument ... ! 13: ] ! 14: .PP ! 15: .B /etc/renice ! 16: [ ! 17: .BI - number ! 18: ] ! 19: .I pid ... ! 20: .PP ! 21: .B nohup ! 22: .I command ! 23: [ ! 24: .I argument ... ! 25: ] ! 26: .SH DESCRIPTION ! 27: .I Nice ! 28: executes ! 29: .I command ! 30: with low scheduling priority. ! 31: If the ! 32: .I number ! 33: argument is present, the priority is incremented (higher ! 34: numbers mean lower priorities) by that amount up to a limit of 19. ! 35: The default ! 36: .I number ! 37: is 10. ! 38: .PP ! 39: The super-user may run commands with ! 40: priority higher than normal ! 41: by using a negative ! 42: .I number, ! 43: e.g. ! 44: .LR --10 . ! 45: .PP ! 46: .I Renice ! 47: increments the scheduling priority ! 48: of the processes with the named ! 49: .I process-ids ! 50: by ! 51: .IR number . ! 52: The default ! 53: .IR number ! 54: is 19, ! 55: making the process least likely to run. ! 56: .PP ! 57: Only the owner of the process ! 58: or the super-user may change the priority. ! 59: Only the super-user may use negative increments. ! 60: .PP ! 61: .I Nohup ! 62: executes ! 63: .I command ! 64: immune to hangup and terminate signals from the controlling terminal. ! 65: The priority is incremented by 5. ! 66: .PP ! 67: Any output not explicitly redirected is appended to ! 68: the file ! 69: .F nohup.out ! 70: in the current directory. ! 71: .SH FILES ! 72: .FR nohup.out ! 73: default destination for standard output and standard error ! 74: .SH "SEE ALSO" ! 75: .IR nice (2) ! 76: .SH FILES ! 77: .F /proc ! 78: .RI ( renice ) ! 79: .SH DIAGNOSTICS ! 80: .I Nice ! 81: returns the exit status of the subject command. ! 82: .SH BUGS ! 83: Quoted ! 84: .I arguments ! 85: don't work right in all cases. ! 86: The difficulty may be avoided by quoting the ! 87: .I command, ! 88: with arguments in inner quotes.
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