30 lines
491 B
C
30 lines
491 B
C
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#include<stdio.h>
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#include<fcntl.h>
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#include<unistd.h>
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#include<stdlib.h>
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#define szbuf 256
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int main(int argc, char const *argv[])
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{
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char buf[szbuf];
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int f1,f2,n,m;
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if(argc<2)
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{
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fprintf(stderr, "Usage : %s <file_name>",argv[0]);
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exit(1);
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}
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fd = open(argv[1],O_WRONLY|O_TRUNC|O_CREAT,0600);
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if(fd == -1)
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{
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perror("Opening source file fails");
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exit(2);
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}
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write (1, "Numb---> ", 9);
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while(n = read (0, buf, szbuf)){
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m = write (fd, buf, n);
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if
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}
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close(fd);
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exit(0);
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}
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