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Introduction [cont'd]
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Strcat in Strings of Programming in C
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Strcat 
Strcat function is a concatinate function, used to concatinate two strings. First string concat second string together. Also returns concatinated string.
Syntax 
char[] strcat(char[] string1,char[] string);
Program
#include
void main(){
    char web_prefix[] = "knowledge";
    char web_suffix[] = "walls";
    //Append web_suffix with web_prefix
    strcat(web_prefix,web_suffix);
    //To clear console screen
    clrscr();
    //Display values
    printf("Prefix: %s\n",web_prefix);
    printf("Suffix: %s\n",web_suffix);
}
Output 
Prefix: knowledgewalls
Suffix: walls
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