This is the list of exit codes for wget

wget_exit_codes.txt

This is the list of exit codes for wget:

0       No problems occurred
1       Generic error code
2       Parse error — for instance, when parsing command-line options, the .wgetrc or .netrc…
3       File I/O error
4       Network failure
5       SSL verification failure
6       Username/password authentication failure
7       Protocol errors
8       Server issued an error response