URL:
<http://savannah.gnu.org/bugs/?38356>
Summary: xargs -P option creates wrong result
Project: findutils
Submitted by: congshi
Submitted on: Wed 20 Feb 2013 05:52:40 PM GMT
Category: xargs
Severity: 3 - Normal
Item Group: Wrong result
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 4.4.2
Fixed Release: None
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Details:
I searched and did not find related fix/bug
script ff
find . -type f \( -name "*\.[cC]" -o -name "*\.[hH]" -o -name
"*\.[cC][pP][pP]" \) | xargs -I"{}" grep -Hn $1 $2 $3 $4 $5 $6 $7 $8 $9 "{}"
script ff0
find . -type f \( -name "*\.[cC]" -o -name "*\.[hH]" -o -name
"*\.[cC][pP][pP]" \) | xargs -P0 -I"{}" grep -Hn $1 $2 $3 $4 $5 $6 $7 $8 $9
"{}"
cd to kernel source /usr/src/linux
and run the scripts as
ff -w long > /dev/shm/1
and
ff0 -w long > /dev/shm/0
The result is different and the line in /dev/shm/0 are mangled and the file
size is smaller.
Slackware 13.0.0.0.0
uname -a
Linux test 2.6.36.2-smp #1 SMP PREEMPT Tue Dec 11 15:28:02 PST 2012 i686
Intel(R) Xeon(R) CPU E5345 @ 2.33GHz GenuineIntel GNU/Linux
xargs --version
xargs (GNU findutils) 4.4.2
Copyright (C) 2007 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by Eric B. Decker, James Youngman, and Kevin Dalley.
Built using GNU gnulib version e5573b1bad88bfabcda181b9e0125fb0c52b7d3b
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