LinuxQuestions.org - [SOLVED] [logrotate] why the stderr cannot be redirected to stdout?

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[logrotate] why the stderr cannot be redirected to stdout?

my command is this:

Code:

logrotate -v -f /opt/backup/logrotate.conf -s /opt/backup/logrotate.log 2>&1 >> /tmp/run.log

I intend to redirect all the outputs into the /tmp/run.log file, but I failed, I can see all the outputs within the console. below are the outputs.

Code:

reading config file /opt/backup/logrotate.conf



Handling 1 logs



rotating pattern: /opt/backup/config.tar  forced from command line (8 rotations)

empty log files are rotated, old logs are removed

considering log /opt/backup/config.tar

  log needs rotating

rotating log /opt/backup/config.tar, log->rotateCount is 8

dateext suffix '-20171127'

glob pattern '-[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]'

destination /opt/backup/config.tar-20171127 already exists, skipping rotation

Try putting the 2>&1 *after* the >> /tmp/run.log
Idk why; let us know IF it works for you (it did for me)

Great, that works, but, how, why?

Quote:

Originally Posted by GentleThotSeaMonkey (Post 5785640)

Try putting the 2>&1 *after* the >> /tmp/run.log
Idk why; let us know IF it works for you (it did for me)

2>&1 directs stderr where stdin currently goes.
So you must first direct stdin to the file.

well, still dont understand, but I'll do my work:)

I'll google it, but the problem has been resolved now. I am closing it.

Quote:

Originally Posted by MadeInGermany (Post 5789782)

2>&1 directs stderr where stdin currently goes.
So you must first direct stdin to the file.