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Full Discussion: [Shell/Perl(?)] Prepending timestamps to console output & writing results to a file
Top Forums Shell Programming and Scripting [Shell/Perl(?)] Prepending timestamps to console output & writing results to a file Post 302647017 by Vryali on Saturday 26th of May 2012 06:01:01 PM
Old 05-26-2012
Thanks for the responses, but the second one seemed a little easier for me to work with, so I tried that out and it did work as desired.

Quote:
Originally Posted by agama
Can you not just pipe it through your perl programme on the way to the output file? Using awk (I don't do perl) it'd be something like this:
The only problem I had was with the output to a file instead of STDOUT - no real idea why. Had tried it all as a one-liner like you recommend but it crapped out, so I tried doing it through tail to make it as bland as possible.

That said, your fix works, thanks so much! Would you mind explaining a tiny snippet?

Code:
 ...; c | getline; close( c ); ...

Is that just prepending c to $0, basically, and if so, why does it need a close, I don't see an open?

Thanks!
Last edited by Vryali; 05-26-2012 at 08:02 PM.. Reason: My English fails, it required adjusting.
 

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LEARN ABOUT OSX

vconsole.conf

VCONSOLE.CONF(5)						   vconsole.conf						  VCONSOLE.CONF(5)

NAME

       vconsole.conf - configuration file for the virtual console

SYNOPSIS

       /etc/vconsole.conf

DESCRIPTION

       The /etc/vconsole.conf file configures the virtual console, i.e. keyboard mapping and console font.

       The basic file format of the vconsole.conf is a newline-separated list environment-like shell-compatible variable assignments. It is
       possible to source the configuration from shell scripts, however, beyond mere variable assignments no shell features are supported,
       allowing applications to read the file without implementing a shell compatible execution engine.

       Note that the kernel command line options vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=,
       vconsole.font.unimap= may be used to override the console settings at boot.

       Depending on the operating system other configuration files might be checked for configuration of the virtual console as well, however only
       as fallback.

OPTIONS

       The following options are understood:

       KEYMAP=, KEYMAP_TOGGLE=
	   Configures the key mapping table of for they keyboard.  KEYMAP= defaults to us if not set. The KEYMAP_TOGGLE= can be used to configured
	   a second toggle keymap and is by default unset.

       FONT=, FONT_MAP=, FONT_UNIMAP=
	   Configures the console font, the console map and the unicode font map.  FONT= defaults to latarcyrheb-sun16.

EXAMPLE

       Example 1. German keyboard and console

       /etc/vconsole.conf:

	   KEYMAP=de-latin1
	   FONT=latarcyrheb-sun16

SEE ALSO

       systemd(1), loadkeys(1), setfont(8), locale.conf(5)

AUTHOR

       Lennart Poettering <lennart@poettering.net>
	   Developer

systemd 							    10/07/2013							  VCONSOLE.CONF(5)
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