Lines Matching +full:- +full:- +full:no +full:- +full:tty

1 /* xargs.c - Run command with arguments taken from stdin.
8  * TODO: -I	Insert mode
9  * TODO: -L	Max number of lines of input per command
10  * TODO: -x	Exit if can't fit everything in one command
12 USE_XARGS(NEWTOY(xargs, "^E:P#<0(null)=1optr(no-run-if-empty)n#<1(max-args)s#0[!0E]", TOYFLAG_USR|T…
18     usage: xargs [-0prt] [-snE STR] COMMAND...
24     -0	Each argument is NULL terminated, no whitespace or quote processing
25     -E	Stop at line matching string
26     -n	Max number of arguments per command
27     -o	Open tty for COMMAND's stdin (default /dev/null)
28     -p	Prompt for y/n from tty before running each command
29     -P	Parallel processes (default 1)
30     -r	Don't run with empty input (otherwise always run command once)
31     -s	Size in bytes per command line
32     -t	Trace, print command line to stderr
44   FILE *tty;
53 // Returning 2 means hit -E STR
67       // Specifying -s can cause "argument too long" errors.
81   // -0 support
94 // Handle SIGUSR1 and SIGUSR2 for -P
97   if (sig == SIGUSR2 && TT.P>1) TT.P--;  in signal_P()
112   // with -s. POSIX also says we have to reserve 2048 bytes "to guarantee  in xargs_main()
116   if (!FLAG(s)) TT.s = sysconf(_SC_ARG_MAX) - environ_bytes() - 4096;  in xargs_main()
120   // If no optargs, call echo.  in xargs_main()
128   for (entries = 0, bytes = -1; entries < toys.optc; entries++)  in xargs_main()
170     if (dlist) dlist->prev->next = 0;  in xargs_main()
171     for (dtemp = dlist; dtemp; dtemp = dtemp->next)  in xargs_main()
172       handle_entries(dtemp->data, out+entries);  in xargs_main()
180         if (!TT.tty) TT.tty = xfopen("/dev/tty", "re");  in xargs_main()
181         if (!fyesno(TT.tty, 0)) goto reap_children;  in xargs_main()
187       xopen_stdio(FLAG(o) ? "/dev/tty" : "/dev/null", O_RDONLY|O_CLOEXEC);  in xargs_main()
196       if (1>(xv = waitpid(-1, &status, WNOHANG*!xv))) break;  in xargs_main()
197       TT.np--;  in xargs_main()
214   while (TT.np && -1 != wait(&status)) TT.np--;  in xargs_main()
215   if (TT.tty) fclose(TT.tty);  in xargs_main()