?? shell.c
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#ifndef lintstatic char sccsid[] = "@(#)shell.c 4.2 (Berkeley) 5/9/83";#endif not lint/*** CALL THE SHELL*/shell(){ int i; register int pid; register int sav2, sav3; if (!(pid = fork())) { setuid(getuid()); nice(0); execl("/bin/csh", "-", 0); syserr("cannot execute /bin/csh"); } sav2 = signal(2, 1); sav3 = signal(3, 1); while (wait(&i) != pid) ; signal(2, sav2); signal(3, sav3);}?? 快捷鍵說明
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