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→Ambiguous Filename Expansion
'''File globbing''' is a feature provided by the UNIX/Linux shell to represent multiple filenames by using special characters called wildcards with a single file name. A wildcard is essentially a symbol which may be used to substitute for one or more characters. Therefore, we can use wildcards for generating the appropriate combination of file names as per our requirement.<br>Reference: https://www.linuxnix.com/10-file-globbing-examples-linux-unix/
As shown in the diagram on the right, when the ls command is issued with a filename expansion symbol (like *), the Bash shell searches for files that match the symbol (in this case all filenames that end with the extension ".txt") and expands the argument using the wildcards with those filenames as separate arguments. You do not see this happen in the shell, it is a process that occurs "behind the scenes".
