/usr/share/doc/libreadline7/examples/rlbasic.c is in readline-doc 7.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | #include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <string.h>
#if defined (READLINE_LIBRARY)
# include "readline.h"
# include "history.h"
#else
# include <readline/readline.h>
# include <readline/history.h>
#endif
int
main (int c, char **v)
{
char *input;
for (;;) {
input = readline ((char *)NULL);
if (input == 0)
break;
printf ("%s\n", input);
if (strcmp (input, "exit") == 0)
break;
free (input);
}
exit (0);
}
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