How to configure default options in ~/.wgetrc

Repeated wget jobs often need the same retry policy, pacing, proxy choice, or request headers. Putting those stable defaults in /$HOME/.wgetrc/ keeps ad-hoc commands and scheduled downloads aligned and removes repeated flags from scripts and shell history.

GNU wget loads a compiled-in system startup file first and then the user startup file, so the account-level file overrides the global policy when both define the same setting. For isolated testing, current GNU Wget can load a different startup file with --config=FILE or the WGETRC environment variable instead of changing the real user profile immediately.

Keep the saved profile narrow. Conservative defaults such as retry counts, timeouts, wait intervals, and a deliberate User-Agent are good candidates for /$HOME/.wgetrc/, while passwords, certificate bypasses, and other high-risk overrides are better kept in /$HOME/.netrc/, a temporary startup file, or a one-off troubleshooting command.

1. Draft the defaults in a preview file before promoting them into the account profile.

   wget-preview.wgetrc
   # Preview the defaults before promoting them into ~/.wgetrc.
   user_agent = MirrorAuditSync/2026.04
   tries = 5
   timeout = 20
   wait = 1

   Wgetrc syntax is variable = value. Command names are case-, hyphen-, and underscore-insensitive.

2. Load the preview file explicitly and confirm that a visible directive took effect.

   $ wget --config=wget-preview.wgetrc -qO- https://httpbin.org/user-agent
   {
     "user-agent": "MirrorAuditSync/2026.04"
   }

   Use a deliberately visible setting such as user_agent for the preview so the result is easy to confirm before the real profile changes.

3. Copy the tested defaults into the real user startup file.

   ~/.wgetrc
   # Stable defaults for recurring downloads.
   user_agent = MirrorAuditSync/2026.04
   tries = 5
   timeout = 20
   wait = 1

   Add only the options that should apply to every later wget command from that account.

4. Restrict the file after saving it so only the current account can read or modify it.

   $ chmod 600 ~/.wgetrc

   Leave passwords and other secrets out of a long-lived default profile when possible. Use /$HOME/.netrc/ or a temporary startup file for those cases instead.

5. Run wget without extra header or timeout flags and confirm that the saved default is active.

   $ wget -qO- https://httpbin.org/user-agent
   {
     "user-agent": "MirrorAuditSync/2026.04"
   }

   A matching value confirms that ordinary commands are reading /$HOME/.wgetrc/.

6. Skip the saved profile when a clean baseline is needed for debugging.

   $ wget --no-config -qO- https://httpbin.org/user-agent
   {
     "user-agent": "Wget/1.25.0"
   }

   --no-config bypasses both the system startup file and the user startup file, which makes it the fastest way to compare built-in behavior with the saved defaults.