04-09-2008
The least painful way depends on your other requirements. If the file is simple then simple line-oriented shell utilities you are familiar with should usually suffice. If you need to do anything which requires any real understanding of XML structures (nesting, sibling and similar relationships, conditionals etc) then it probably makes sense to get at least some introductory familiarity to some proper XML tool. There are several formalisms to choose from and many tools which implement them; personally, I've been able to get things done with xsltproc after the first shock of trying to understand what got into the heads of the people who came up with the specifications for this.
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Hi,
i call my shell like:
my_shell "my project name"
my script:
#!/bin/bash -vx
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the following error occurres:
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Search and Replace a string pattern with empty in an xml file in unix:
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Hello Unix gurus!
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Can someone tell me how I can do this?
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erterte
rterter
tertertert
ert)
How do i replace the STRING with $a?
I try this:
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here is what i want to achieve... consider a file contains below contents. the file size is large about 60mb
cat dump.sql
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Hi All
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Hello,
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Sorry for the long/weird title but I'm stuck on a problem I have. I have this XML file:
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Hi All,
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In following XML file
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LEARN ABOUT LINUX
iptables-xml
IPTABLES-XML(8) IPTABLES-XML(8)
NAME
iptables-xml -- Convert iptables-save format to XML
SYNOPSIS
iptables-xml [-c] [-v]
DESCRIPTION
iptables-xml is used to convert the output of iptables-save into an easily manipulatable XML format to STDOUT. Use I/O-redirection pro-
vided by your shell to write to a file.
-c, --combine
combine consecutive rules with the same matches but different targets. iptables does not currently support more than one target per
match, so this simulates that by collecting the targets from consecutive iptables rules into one action tag, but only when the rule
matches are identical. Terminating actions like RETURN, DROP, ACCEPT and QUEUE are not combined with subsequent targets.
-v, --verbose
Output xml comments containing the iptables line from which the XML is derived
iptables-xml does a mechanistic conversion to a very expressive xml format; the only semantic considerations are for -g and -j targets in
order to discriminate between <call> <goto> and <nane-of-target> as it helps xml processing scripts if they can tell the difference between
a target like SNAT and another chain.
Some sample output is:
<iptables-rules>
<table name="mangle">
<chain name="PREROUTING" policy="ACCEPT" packet-count="63436" byte-count="7137573">
<rule>
<conditions>
<match>
<p>tcp</p>
</match>
<tcp>
<sport>8443</sport>
</tcp>
</conditions>
<actions>
<call>
<check_ip/>
</call>
<ACCEPT/>
</actions>
</rule>
</chain>
</table> </iptables-rules>
Conversion from XML to iptables-save format may be done using the iptables.xslt script and xsltproc, or a custom program using libxsltproc
or similar; in this fashion:
xsltproc iptables.xslt my-iptables.xml | iptables-restore
BUGS
None known as of iptables-1.3.7 release
AUTHOR
Sam Liddicott <azez@ufomechanic.net>
SEE ALSO
iptables-save(8), iptables-restore(8), iptables(8)
Jul 16, 2007 IPTABLES-XML(8)