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Shell Programming and Scripting
Listing IPs from the dhcpd.conf
Post 303007010 by hermouche on Friday 10th of November 2017 07:01:06 AM
11-10-2017
Quote:
Thanks
---------- Post updated at 02:37 PM ---------- Previous update was at 02:35 PM ----------
I will try to put every thing in just one script and i will post it. It may help others which have the same situation.
---------- Post updated 11-10-17 at 07:01 AM ---------- Previous update was 11-09-17 at 02:37 PM ----------
Something is strange, i can't catch it !!!
If the output of the following code is on the screen, i got the right things i.e:
Code:
awk -F"[ ;]*" '
/^subnet/ {SUBNET = $2
}
/^ *fixed/ {FXIP[$3]
}
END {sub (/[^.]*$/, "", SUBNET)
for (i=1; i<255; i++) {TMP = sprintf ("%s%d", SUBNET, i)
printf "%c%s\n", (TMP in FXIP)?"#":"", TMP
}
}
' /home/red/dhcpd.confCode:
192.168.0.235 192.168.0.236 192.168.0.237 192.168.0.238 #192.168.0.239 #192.168.0.240 #192.168.0.241 #192.168.0.242
Code:
awk -F"[ ;]*" '
/^subnet/ {SUBNET = $2
}
/^ *fixed/ {FXIP[$3]
}
END {sub (/[^.]*$/, "", SUBNET)
for (i=1; i<255; i++) {TMP = sprintf ("%s%d", SUBNET, i)
printf "%c%s\n", (TMP in FXIP)?"#":"", TMP
}
}
' /home/red/dhcpd.conf > /home/red/ipblocked.txtCode:
^@192.168.0.235 ^@192.168.0.236 ^@192.168.0.237 ^@192.168.0.238 #192.168.0.239 #192.168.0.240 #192.168.0.241 #192.168.0.242
Why and how to take off these ^@ from the output !
Thanks a lot
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Last edited by RudiC; 11-10-2017 at 10:28 AM.. Reason: Changed QUOTE to CODE tags.
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