write in file in c
#include<stdio.h>
int main(){
FILE *out=fopen("name_of_file.txt","w");
fputs("Hello File",out);
fclose(out);
return 0;
}write in file in c
#include<stdio.h>
int main(){
FILE *out=fopen("name_of_file.txt","w");
fputs("Hello File",out);
fclose(out);
return 0;
}how to print a file c
c = fgetc(fptr);
while (c != EOF)
{
printf ("%c", c);
c = fgetc(fptr);
}c read file from command line
You can use as your main function:
int main(int argc, char **argv)
So, if you entered to run your program:
C:\myprogram myfile.txt
argc will be 2
argv[0] will be myprogram
argv[1] will be myfile.txt
To read the file:
FILE *f = fopen(argv[1], "r");how to read an entire text file from c program
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border: 0;
clip: rect(1px, 1px, 1px, 1px);
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clip-path: inset(50%);
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overflow: hidden;
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position: absolute;
width: 1px;
word-wrap: normal;
word-break: normal;
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box-sizing: border-box;
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display: table;
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counter-increment: line;
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padding-left: 0.75em;
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border-right: 1px solid #ddd;
content: counter(line);
display: table-cell;
padding: 0 0.75em;
text-align: right;
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user-select: none;
white-space: nowrap;
width: 1%;
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#include <stdio.h>
int main()
{
char *filename = "readme.txt";
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
printf("Error: could not open file %s", filename);
return 1;
}
// read one character at a time and
// display it to the output
char ch;
while ((ch = fgetc(fp)) != EOF)
putchar(ch);
// close the file
fclose(fp);
return 0;
}Code language: C++ (cpp)Copyright © 2021 Codeinu
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