| system.3 (16117) | system.3 (43265) |
|---|---|
| 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the American National Standards Committee X3, on Information 6.\" Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 61 unchanged lines hidden (view full) --- 70.Fn system 71will return non-zero if the command interpreter 72.Xr sh 1 73is available, and zero if it is not. 74.Pp 75The 76.Fn system 77function | 1.\" Copyright (c) 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the American National Standards Committee X3, on Information 6.\" Processing Systems. 7.\" 8.\" Redistribution and use in source and binary forms, with or without --- 61 unchanged lines hidden (view full) --- 70.Fn system 71will return non-zero if the command interpreter 72.Xr sh 1 73is available, and zero if it is not. 74.Pp 75The 76.Fn system 77function |
| 78returns the exit status of the shell, or \-1 if the 79.Xr wait 2 80for the shell failed. | 78returns the exit status of the shell as returned by 79.Xr waitpid 2 , 80or \-1 if an error occurred when invoking 81.Xr fork 2 82or 83.Xr waitpid 2 . |
| 81A return value of 127 means the execution of the shell 82failed. 83.Sh SEE ALSO 84.Xr sh 1 , 85.Xr execve 2 , | 84A return value of 127 means the execution of the shell 85failed. 86.Sh SEE ALSO 87.Xr sh 1 , 88.Xr execve 2 , |
| 86.Xr wait 2 , | 89.Xr fork 2 , 90.Xr waitpid 2 , |
| 87.Xr popen 3 88.Sh STANDARDS 89The 90.Fn system 91function 92conforms to 93.St -ansiC . 94and is expected to be 95.St -p1003.2 96compatible. | 91.Xr popen 3 92.Sh STANDARDS 93The 94.Fn system 95function 96conforms to 97.St -ansiC . 98and is expected to be 99.St -p1003.2 100compatible. |