[arch-general] Impossible redirect console buffer to log

[Chris Billington]

Perplexing! How about the 'script' command?

On Fri., 1 Mar. 2019, 13:13 Maykel Franco, <maykeldebian at gmail.com> wrote:

> El vie., 1 mar. 2019 a las 19:09, Chris Billington
> (<chrisjbillington at gmail.com>) escribió:
> >
> > The program could also explicitly be modifying its behaviour based on
> whether stdout is a tty or not. You can trick it into thinking its stdout
> is a tty with the program 'unbuffer'. For example:
> >
> > [bilbo:~]$ python -c 'import sys; print(sys.stdout.isatty())' | cat
> > False
> > [bilbo:~]$ unbuffer python -c 'import sys; print(sys.stdout.isatty())' |
> cat
> > True
> >
> > So you might try:
> >
> > unbuffer /usr/local/bin/CCcam -d > file
> >
> >
> > On Fri, Mar 1, 2019 at 1:04 PM Maykel Franco <maykeldebian at gmail.com>
> wrote:
> >>
> >> El vie., 1 mar. 2019 a las 19:01, Chris Billington
> >> (<chrisjbillington at gmail.com>) escribió:
> >> >
> >> > Perhaps the program writes its log to stderr, and not to stdout?
> >> >
> >> > If so, you can redirect both stdout and stderr to file with:
> >> >
> >> > command &> out
> >> >
> >> >
> >> >
> >> > On Fri, Mar 1, 2019 at 12:47 PM Maykel Franco via arch-general <
> arch-general at archlinux.org> wrote:
> >> >>
> >> >> HI, I playing with cccam for a proyect with decoder and I like stdout
> >> >> console log to specific log but not work...
> >> >>
> >> >> I try all:
> >> >>
> >> >> >> /var/log/test.log
> >> >>
> >> >> tee -a /var/log/test.log
> >> >>
> >> >> strace -p pid
> >> >>
> >> >> The command is:
> >> >>
> >> >> /usr/local/bin/CCcam -d
> >> >> 18:43:15.717 CCcam:
> >> >>
> ======================================================================
> >> >> 18:43:15.717 CCcam: starting CCcam
> >> >>
> ======================================================================
> >> >> 18:43:15.717 CCcam: online using nodeId 91dd747775a31f66
> >> >> 18:43:15.735 CCcam: create 1 cam device(s)
> >> >> 18:43:15.739 CCcam: readKeyfile: cannot open /var/keys/SoftCam.Key
> or not found
> >> >> 18:43:15.739 CCcam: readKeyfile: cannot open /var/keys/AutoRoll.Key
> or not found
> >> >> 18:43:15.739 CCcam: static cw not found or bad
> >> >> 18:43:15.746 CCcam: parsed 11522 entries from /var/etc/CCcam.prio
> >> >> 18:43:15.747 CCcam: added 1005 provider names from
> /var/etc/CCcam.providers
> >> >> 18:43:15.798 CCcam: added 11097 channel names from
> /var/etc/CCcam.channelinfo
> >> >> 18:43:15.798 CCcam: server started on port 47015
> >> >>
> >> >>
> >> >>
> >> >> The binary program is:
> >> >>
> >> >> /usr/local/bin/CCcam: ELF 64-bit LSB executable, x86-64, version 1
> >> >> (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2,
> >> >> for GNU/Linux 2.6.32, BuildID[sha1]=6ab44025c0a35a3
> >> >> 83d63f30e96e489f29df424b5, stripped
> >> >>
> >> >>
> >> >> I've tried everything, I do not know what to do to have that output
> >> >> write it to log.
> >> >>
> >> >> I've tried inclusy with tty, pts but it's impossible.
> >> >>
> >> >> Does somebody knows why it could be? with any other command /
> program works well
> >> >>
> >> >> with the only thing that I have managed to write to log is add:
> >> >>
> >> >> | stdbuf -oL
> >> >>
> >> >> but the program closes
> >>
> >> Thanks for your reply.
> >>
> >> Not works... I probe all combinations:
> >>
> >> > file redirects stdout to file
> >> 1> file redirects stdout to file
> >> 2> file redirects stderr to file
> >> &> file redirects stdout and stderr to file
> >>
> >> Not work...
>
> Unbuffer work but the program exit...
>
> $ unbuffer /usr/local/bin/cccam -d > /var/log/test.log
>
> tail: /var/log/test.log: file truncated
> 19:12:12.548 CCcam:
> ======================================================================
> 19:12:12.548 CCcam: starting CCcam 2.1.3 compiled on Nov 14 2009 at 00:47:12
> 19:12:12.548 CCcam:
> ======================================================================
> 19:12:12.548 CCcam: online using nodeId 95ced5a4a066a2b2
> 19:12:12.568 CCcam: create 1 cam device(s)
>
> and exit... crash/close program
>