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head/usr.bin/limits/limits.1
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| .\" is permitted provided this notation is included. | .\" is permitted provided this notation is included. | ||||
| .\" 4. Absolutely no warranty of function or purpose is made by the author | .\" 4. Absolutely no warranty of function or purpose is made by the author | ||||
| .\" David Nugent. | .\" David Nugent. | ||||
| .\" 5. Modifications may be freely made to this file providing the above | .\" 5. Modifications may be freely made to this file providing the above | ||||
| .\" conditions are met. | .\" conditions are met. | ||||
| .\" | .\" | ||||
| .\" $FreeBSD$ | .\" $FreeBSD$ | ||||
| .\" | .\" | ||||
| .Dd May 26, 2020 | .Dd June 25, 2020 | ||||
| .Dt LIMITS 1 | .Dt LIMITS 1 | ||||
| .Os | .Os | ||||
| .Sh NAME | .Sh NAME | ||||
| .Nm limits | .Nm limits | ||||
| .Nd set or display process resource limits | .Nd set or display process resource limits | ||||
| .Sh SYNOPSIS | .Sh SYNOPSIS | ||||
| .Nm | .Nm | ||||
| .Op Fl C Ar class | Fl P Ar pid | Fl U Ar user | .Op Fl C Ar class | Fl P Ar pid | Fl U Ar user | ||||
| ▲ Show 20 Lines • Show All 340 Lines • ▼ Show 20 Lines | |||||
| .Fl e | .Fl e | ||||
| is used when running a program, etc. | is used when running a program, etc. | ||||
| When run in display or eval mode, | When run in display or eval mode, | ||||
| .Nm | .Nm | ||||
| exits with a status of | exits with a status of | ||||
| .Dv EXIT_SUCCESS . | .Dv EXIT_SUCCESS . | ||||
| When run in command mode and execution of the command succeeds, the exit status | When run in command mode and execution of the command succeeds, the exit status | ||||
| will be whatever the executed program returns. | will be whatever the executed program returns. | ||||
| .Sh EXAMPLES | |||||
| Show current stack size limit: | |||||
| .Bd -literal -offset indent | |||||
| $ limits -s | |||||
| Resource limits (current): | |||||
| stacksize 524288 kB | |||||
| .Ed | |||||
| .Pp | |||||
| Try to run | |||||
| .Xr ls 1 | |||||
| with 1 byte of | |||||
| .Va datasize | |||||
| limit: | |||||
| .Bd -literal -offset indent | |||||
| $ limits -d 1b ls | |||||
| Data segment size exceeds process limit | |||||
| Abort trap | |||||
| .Ed | |||||
| .Pp | |||||
| Produce | |||||
| .Ql eval mode | |||||
| output to limit | |||||
| .Va sbsize | |||||
| to 1 byte. | |||||
| Output obtained when command is run from | |||||
| .Xr sh 1 : | |||||
| .Bd -literal -offset indent | |||||
| $ limits -e -b 1b | |||||
| ulimit -b 512; | |||||
| .Ed | |||||
| .Pp | |||||
| Same as above from | |||||
| .Xr csh 1 | |||||
| .Bd -literal -offset indent | |||||
| % limits -e -b 1b | |||||
| limit -h sbsize 512; | |||||
| limit sbsize 512; | |||||
| .Ed | |||||
| .Sh SEE ALSO | .Sh SEE ALSO | ||||
| .Xr csh 1 , | .Xr csh 1 , | ||||
| .Xr env 1 , | .Xr env 1 , | ||||
| .Xr limit 1 , | .Xr limit 1 , | ||||
| .Xr sh 1 , | .Xr sh 1 , | ||||
| .Xr getrlimit 2 , | .Xr getrlimit 2 , | ||||
| .Xr setrlimit 2 , | .Xr setrlimit 2 , | ||||
| .Xr login_cap 3 , | .Xr login_cap 3 , | ||||
| .Xr login.conf 5 , | .Xr login.conf 5 , | ||||
| .Xr rctl 8 , | .Xr rctl 8 , | ||||
| .Xr sysctl 8 | .Xr sysctl 8 | ||||
| .Sh HISTORY | .Sh HISTORY | ||||
| The | The | ||||
| .Nm | .Nm | ||||
| utility first appeared in | utility first appeared in | ||||
| .Fx 2.1.7 . | .Fx 2.1.7 . | ||||
| .Sh AUTHORS | .Sh AUTHORS | ||||
| The | The | ||||
| .Nm | .Nm | ||||
| utility was written by | utility was written by | ||||
| .An David Nugent Aq Mt davidn@FreeBSD.org . | .An David Nugent Aq Mt davidn@FreeBSD.org . | ||||
| .Sh BUGS | .Sh BUGS | ||||
| The | The | ||||
| .Nm | .Nm | ||||
| utility does not handle commands with equal | utility does not handle commands with equal | ||||
| .Pq Ql = | .Pq Ql = | ||||
| signs in their | signs in their | ||||
| names, for obvious reasons. | names, for obvious reasons. | ||||
| .Pp | .Pp | ||||
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