banan-os/userspace/programs/touch/main.cpp

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#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
int main(int argc, char** argv)
{
int ret = 0;
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for (int i = 1; i < argc; i++)
{
if (creat(argv[i], 0644) == -1 && errno != EEXIST)
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{
perror(argv[i]);
ret = 1;
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}
}
return ret;
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}