Rsyslog is backwards-compatible with Syslog configuration files.

The syslog.conf man page has:

You may prefix each entry with the minus ``-'' sign to omit syncing the file after every logging. Note that you might lose information if the system crashes right behind a write attempt. Nevertheless this might give you back some performance, especially if you run programs that use logging in a very verbose manner.

but I could not find aything about the - sign in man rsyslog.conf.

What does rsyslog do when if reads - in the config file?


It has the same function. Docs (cached version, since the original is returning an error right now)

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