I'm trying to insert multiple new lines of text into an iptables script using sed in a while loop. I'm not sure if this is the most effective way. Searching the forums has helped me come up with a good beginning but it's not 100%. I'd like it to search out a unique line in my current iptables file and add new rules above it. The problem now is that it only ends up inserting one new line instead of the 20 it should (based on the $BOGON_LIST).
I suppose this is a silly newbie Q, but I have a set of text I am inserting into a file using a sed cmd and before I insert, I want to ask the sed operation to move to add a carriage return first, and then place my new line.
Is there scope within the sed command to do this - i have tried "\n"... (6 Replies)
Hi,
I have tried to develop a sed script that inserts date and time in the third field in the first and second row below. The third row is an example and it shows where the date and time should be inserted. The script should check if the row already has date and time in the third field and if it... (2 Replies)
Hello all and thanks in advance!
What I'm looking to do is insert a blank line, anytime the first 9 characters of a given line don't match the first 9 characters of the previous line.
i.e.
Convert the data set
1 45 64 89
1 89 69 235
2 89 234 67
2 56 90... (1 Reply)
Dear All,
I have a file called football where i have a list of 11 players each on different lines.
I wish to add a name of another player on the first line.
I have created a file called footballscript in vi writing the following sed command to achieve this ...
cat football | sed -e '1 i\... (4 Replies)
Hello,
i use sed '/good/ a\INSERT' 1.txt command for insert a text on my file on linux butit does not work see the output :
# sed '/good/ a\INSERT' 1.txt
if_test=iso
ifup=eth0
Hello
World
Bye
now
good
INSERT
# cat 1.txt
if_test=iso
ifup=eth0
Hello
World
Bye
now (1 Reply)
Hi guys,
I need to insert @test.com after each entry in my .txt file.
1
2
3
4
1@test.com
2@test.com
3@test.com
4@test.com
Tried to use
cat test.txt |sed 's/$/@test.com/'but it does this instead:
1
@test.com
2 (6 Replies)
Could anyone tell me how to insert a line at a particular line number using sed.
sed '2i\newtext' filename
I have tried the above command .But it is not working. I am using tcsh shell .Please help.
Double post, continued here (0 Replies)
I need to insert text from one file into another file after specific term. I guess sed is the best method of doing this and I can insert a specified text string using this script but I am not sure how to modify it to insert text from another file:
#!/bin/sh
sed 's/\<VirtualHost... (17 Replies)
Hi everyone,
I am trying to insert a single very long string as the first line of a file,
So the following sed commands does what I want;
sed '1i\"","a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"' file.txt
Think that all the... (3 Replies)
Discussion started by: hayreter
3 Replies
LEARN ABOUT REDHAT
iptables-apply
IPTABLES-APPLY(8) iptables 1.6.1 IPTABLES-APPLY(8)NAME
iptables-apply - a safer way to update iptables remotely
SYNOPSIS
iptables-apply [-hV] [-t timeout] [-w savefile] {[rulesfile]|-c [runcmd]}
DESCRIPTION
iptables-apply will try to apply a new rulesfile (as output by iptables-save, read by iptables-restore) or run a command to configure
iptables and then prompt the user whether the changes are okay. If the new iptables rules cut the existing connection, the user will not be
able to answer affirmatively. In this case, the script rolls back to the previous working iptables rules after the timeout expires.
Successfully applied rules can also be written to savefile and later used to roll back to this state. This can be used to implement a store
last good configuration mechanism when experimenting with an iptables setup script: iptables-apply -w /etc/network/iptables.up.rules -c
/etc/network/iptables.up.run
When called as ip6tables-apply, the script will use ip6tables-save/-restore and IPv6 default values instead. Default value for rulesfile is
'/etc/network/iptables.up.rules'.
OPTIONS -t seconds, --timeout seconds
Sets the timeout in seconds after which the script will roll back to the previous ruleset (default: 10).
-w savefile, --write savefile
Specify the savefile where successfully applied rules will be written to (default if empty string is given:
/etc/network/iptables.up.rules).
-c runcmd, --command runcmd
Run command runcmd to configure iptables instead of applying a rulesfile (default: /etc/network/iptables.up.run).
-h, --help
Display usage information.
-V, --version
Display version information.
SEE ALSO iptables-restore(8), iptables-save(8), iptables(8).
LEGALESE
Original iptables-apply - Copyright 2006 Martin F. Krafft <madduck@madduck.net>. Version 1.1 - Copyright 2010 GW <gw.2010@tnode.com or
http://gw.tnode.com/>.
This manual page was written by Martin F. Krafft <madduck@madduck.net> and extended by GW <gw.2010@tnode.com or http://gw.tnode.com/>.
Permission is granted to copy, distribute and/or modify this document under the terms of the Artistic License 2.0.
iptables 1.6.1IPTABLES-APPLY(8)