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Full Discussion: gzip to read logs
Top Forums UNIX for Dummies Questions & Answers gzip to read logs Post 302427365 by drl on Friday 4th of June 2010 09:06:02 PM
Old 06-04-2010
Hi.

The command ls provides a list of files. So:
Code:
gzip -cd $( ls -1 *.gz  | tail -100 ) ...

would first filter for gz files, placing them in a single column ("1" is one, not "L"), then the final 100 would be provided to gzip as a source of input file names for it.

Try it with 3 instead of 100 to test it ... cheers, drl
 

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xpacode(7)							SAORD Documentation							xpacode(7)

NAME
XPACode - Where to Find Example/Test Code SYNOPSIS
The XPA source code directory contains two test programs, stest.c, and ctest.c that can serve as examples for writing XPA servers and clients, respectively. They also can be used to test various features of XPA. DESCRIPTION
To build the XPA test programs, execute: make All in the XPA source directory to generate the stest and ctest programs. (NB: this should work on all platforms, although we have had prob- lems with unresolved externals on one Sun/Solaris machine, for reasons still unknown.) The stest program can be executed with no arguments to start an XPA server that contains the access points: xpa, xpa1, c_xpa (containing sub-commands cmd1 and cmd2), and i_xpa. You then can use xpaset and xpaget to interact with these access points: cat xpa.c | xpaset xpa # send to xpa cat xpa.c | xpaset "xpa*" # send to xpa and xpa1 xpaget xpa # receive from xpa xpaget xpa* # receive from xpa and xpa1 etc. You also can use ctest to do the same thing, or to iterate: ctest -s -l 100 xpa # send to xpa 100 times ctest -s -l 100 "xpa*" # send to xpa and xpa1 100 times ctest -g -l 100 xpa # receive from xpa 100 times ctest -g -l 100 "xpa*" # receive from xpa and xpa1 100 times More options are available: see the stest.c and ctest.c code itself, which were used extensively to debug XPA. The file test.tcl in the XPA source directory gives examples for using the XPATclInterface. SEE ALSO
See xpa(7) for a list of XPA help pages version 2.1.14 June 7, 2012 xpacode(7)
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