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72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
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* C Program to List All Lines containing a given String
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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int search(FILE *, char *);
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void main(int argc, char * argv[])
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{
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FILE *fp1;
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int p;
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fp1 = fopen(argv[1], "r+");
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if (fp1 == NULL)
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{
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printf("cannot open the file ");
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exit(0);
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}
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search(fp1, argv[2]);
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fclose(fp1);
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}
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/* Searches the lines */
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int search(FILE *fp, char * str)
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{
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FILE *fp1;
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fp1 = fopen("fp1","w");
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char s[10],c;
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int len = strlen(str);
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int i = 0;
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int d;
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int seek = fseek(fp, 0, 0);
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c = fgetc(fp);
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while (c != EOF)
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{
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if (c == ' ' || c == '')
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{
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s[i] = '';
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i = 0;
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if (strcmp(s, str) == 0)
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{
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while (c = fgetc(fp) != '')
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{
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fseek(fp, -2L, 1);
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d = ftell(fp);
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}
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while ((c = fgetc(fp)) != '')
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{
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fputc(c, fp1);
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}
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}
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}
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else
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{
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s[i] = c;
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i++;
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}
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c = fgetc(fp);
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}
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return 1;
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}
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/*
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hi hello everyone
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again hi to the late comers
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welcome to the class
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example hi
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hi hello everyone
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again hi to the late comers
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