无法执行“ $ echo prog1 / p *。”命令

Question

I am currently reading " The LPI Introductory Programme ".
It says that I can try $ echo prog1/p*.c to search exact files that starts with " p " and ends with " c ".

But instead of that, echo command just prints out the given in quotes, why ?

Answer 1

echo attempts to print file names that matches the given pattern, but if no match is found it treats pattern as text to be printed and does what it is meant for.

use ls -l prog1/p*.c instead, for listing files. also make sure your current working directory and navigable sub directories from there.