Hi all, I have come accross a strange problem while doing some scripting
with lvdisplay. When I use lvdisplay piped to awk in the first example
(noting that I have 'hard-wired' one field in awk), a second line is printed
containing all hard-wired strings, including tabs. But if I encase the
lvdisplay in backticks and use echo then piped to awk the problem does not
exist.
[root@linux-lvm bin]# lvdisplay -c /dev/rootvg/bbs | awk -F: '{print $1
"\t\t" $9 "\t" $9 "\t" "2" "\t" $4 }'
/dev/rootvg/bbs 16 16 2 1
2
[root@linux-lvm bin]# echo `lvdisplay -c /dev/rootvg/bbs` | awk -F: '{print
$1 "\t\t" $9 "\t" $9 "\t" "2" "\t" $4 }'
/dev/rootvg/bbs 16 16 2 1
I have tried using sed to strip out newline characters, but this has not
helped. lvdisplay -c /dev/rootvg/bbs | awk -F: '{print $1 "\t\t" $9 "\t" $9
"\t" "2" "\t" $4 }' | sed "s/\n/ /g"
I have a work around so it is not a major issue, but I thought I'd raise it
anyway.
Thanks
Colin Coe
Systems Administrator
Bunnings Building Supplies Pty Ltd
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