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Full Discussion: Output of until to file versus stdout
Top Forums UNIX for Beginners Questions & Answers Output of until to file versus stdout Post 303032331 by stomp on Friday 15th of March 2019 09:51:21 AM
Old 03-15-2019
Quote:
Originally Posted by Xubuntu56
Why does this until false; do history | head -5; done
 result in a stdout infinite loop, yet until false; do history | head -5 > hist5; done
 only writes it once to file hist5? Furthermore, I can hear the hard drive working on the 2nd command until I end the process, but the history | head -5 is only written once.

It does not write once. It writes continously without break the same 5 lines into hist5 file over and over and generates considerable load at your machine. Since every session has its own history this makes no sense to do.


I'm unsure, but I assume .bash_history file is written at logout. If you want to see another sessions history with this, this will not work.
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Xubuntu56
 

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LEARN ABOUT DEBIAN

m2ts2ts

M2TS2TS:(1)							   User Commands						       M2TS2TS:(1)

NAME

       m2ts2ts - Convert m2ts to TS

SYNOPSIS

       m2ts2ts [switches] <infile> <outfile>

DESCRIPTION

	      TS tools version 1.11, m2ts2ts built Nov 11 2008 17:15:50

   Files:
       <infile>
	      is a BDAV MPEG-2 Transport Stream file (M2TS) (but see -stdin)

	      <outfile> is an H.222 Transport Stream file (but see -stdout)

   General Switches:
       -stdin Input from standard input instead of a file

       -stdout
	      Output to standard output instead of a file

       -verbose, -v
	      Output informational/diagnostic messages

       -quiet, -q
	      Only output error messages

       -buffer <n>, -b <n>
	      Number of TS packets to buffer for reordering Defaults to 4.

	      TS tools version 1.11, m2ts2ts built Nov 11 2008 17:15:50

   Files:
       <infile>
	      is a BDAV MPEG-2 Transport Stream file (M2TS) (but see -stdin)

	      <outfile> is an H.222 Transport Stream file (but see -stdout)

   General Switches:
       -stdin Input from standard input instead of a file

       -stdout
	      Output to standard output instead of a file

       -verbose, -v
	      Output informational/diagnostic messages

       -quiet, -q
	      Only output error messages

       -buffer <n>, -b <n>
	      Number of TS packets to buffer for reordering Defaults to 4.

SEE ALSO

       The full documentation for m2ts2ts is maintained as a Texinfo manual.  Please check http://tstools.berlios.de for more information.

m2ts2ts 1.11							   November 2008						       M2TS2TS:(1)
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