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04-21-2009
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Scripting via awk
Hi,
I am trying to understand what is happening here, new to scripting: I have a couple of these, but if I knew what was going on in one I can figure out the rest: Code:
awk '/rpc-100083/ { $2 = "enable -r" }
$3 ~ /.NOS99dtlogin/ { $t = $2; $2 = $3; $3 = $t }
{ print }' /var/svc/profile/upgrade \
>/var/svc/profile/upgrade.new
mv /var/svc/profile/upgrade.new /var/svc/profile/upgrade
Thanks. Last edited by vgersh99; 04-21-2009 at 11:13 AM.. |
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04-21-2009
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Firstly, please use the BB code tags when posting code/data samples.
Code:
awk '
# if there's a "rpc-100083" pattern found anywhere on a current line, assign a
# second field ($2) a string "enable -r"
/rpc-100083/ { $2 = "enable -r" }
# if a THRIRD field ($3) contains a pattern ".NOS99dtlogin", then swap the
# values in the SEND and the THIRD fields. Most likely you meant "t" and
# not "$t" variable as a temp place holder.
$3 ~ /.NOS99dtlogin/ { t = $2; $2 = $3; $3 = t }
# print the current record/line
{ print }' /var/svc/profile/upgrade \
>/var/svc/profile/upgrade.new
# Above: output the result to "upgrade.new" file
# move "upgrade.new" to "upgrade"
mv /var/svc/profile/upgrade.new /var/svc/profile/upgrade
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04-21-2009
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Noted.
Ok, Basically , what is being achieved here, e.g how would this help in placing security measures on Solaris? |
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