48 lines
561 B
C
48 lines
561 B
C
/* echo.c */
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#include <unistd.h>
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#include <stdio.h>
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/* echo */
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static int _echo(int argc, char * argv[])
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{
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int i;
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if(argc != 0)
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{
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printf("%s", argv[0]);
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for(i = 1; i < argc; i++)
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printf(" %s", argv[i]);
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}
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fputc('\n', stdout);
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return 0;
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}
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/* usage */
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static int _usage(void)
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{
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fprintf(stderr, "%s", "Usage: echo [string...]\n");
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return 1;
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}
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/* main */
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int main(int argc, char * argv[])
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{
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int o;
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while((o = getopt(argc, argv, "")) != -1)
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{
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switch(o)
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{
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case '?':
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return _usage();
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}
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}
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return _echo(argc - 1, &argv[1]);
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}
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