40 lines
593 B
C
Executable File
40 lines
593 B
C
Executable File
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <wait.h>
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// cmd1 | cmd2
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int
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main(int argc, char **argv)
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{
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char *cmd1 = argv[1];
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char *cmd2 = argv[2];
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int fd[2];
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pipe(fd);
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if (!fork()) {
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dup2(fd[1], 1);
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close(fd[0]);
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execlp(cmd1, cmd1, NULL);
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_exit(1);
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} else if (!fork()) {
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dup2(fd[0], 0);
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close(fd[1]);
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execlp(cmd2, cmd2, NULL);
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_exit(1);
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} else {
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close(fd[0]);
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close(fd[1]);
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}
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while (wait(NULL) != -1)
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;
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return 0;
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}
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