I have these variables:
file_path="/home/dir/file.xml"
string="<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>"
This is the content of file.xml
<network>
<name>br-ext</name>
<forward mode='route'/>
<bridge name='br-ext' stp='on' delay='0'/>
<mac address='52:54:00:9f:a0:00'/>
<ip address='10.10.1.11' netmask='255.255.255.0'>
<dhcp>
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
<host mac='0A:AA:FF:C1:A2:EE' name='vsrxa-2' ip='10.10.1.22'/>
<host mac='0A:AA:FF:C1:B1:EE' name='vsrxb-1' ip='10.10.1.23'/>
<host mac='0A:AA:FF:C1:B2:EE' name='vsrxb-2' ip='10.10.1.24'/>
<host mac='0A:AA:FF:C1:C1:EE' name='vsrxc-1' ip='10.10.1.25'/>
<host mac='0A:AA:FF:C1:C2:EE' name='vsrxc-2' ip='10.10.1.26'/>
<host mac='0A:AA:FF:C1:D1:EE' name='vsrxd-1' ip='10.10.1.27'/>
<host mac='0A:AA:FF:C1:D2:EE' name='vsrxd-2' ip='10.10.1.28'/>
</dhcp>
</ip>
</network>
I would like to add the $string
right after the <dhcp>
flag, something like this:
...
<dhcp>
<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
...
I tried using sed "/\dhcp\/a $string $file_path"
in my bash script with no success...
Does anyone know how I can achieve this?
CodePudding user response:
You are not too far:
sed -i "/<dhcp>/a \ \ \ \ \ \ ${string}" "${file_path}"
-i
to change input file/<dhcp>/
to select onlydhcp
open tag- (
\
) * 6 to indentstring
content
Result:
<network>
<name>br-ext</name>
<forward mode='route'/>
<bridge name='br-ext' stp='on' delay='0'/>
<mac address='52:54:00:9f:a0:00'/>
<ip address='10.10.1.11' netmask='255.255.255.0'>
<dhcp>
<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
<host mac='0A:AA:FF:C1:A2:EE' name='vsrxa-2' ip='10.10.1.22'/>
<host mac='0A:AA:FF:C1:B1:EE' name='vsrxb-1' ip='10.10.1.23'/>
<host mac='0A:AA:FF:C1:B2:EE' name='vsrxb-2' ip='10.10.1.24'/>
<host mac='0A:AA:FF:C1:C1:EE' name='vsrxc-1' ip='10.10.1.25'/>
<host mac='0A:AA:FF:C1:C2:EE' name='vsrxc-2' ip='10.10.1.26'/>
<host mac='0A:AA:FF:C1:D1:EE' name='vsrxd-1' ip='10.10.1.27'/>
<host mac='0A:AA:FF:C1:D2:EE' name='vsrxd-2' ip='10.10.1.28'/>
</dhcp>
</ip>
</network>
CodePudding user response:
Using sed
$ sed "/<dhcp>/{p;s|\( \ \).*|\1 $string|;}" file
<network>
<name>br-ext</name>
<forward mode='route'/>
<bridge name='br-ext' stp='on' delay='0'/>
<mac address='52:54:00:9f:a0:00'/>
<ip address='10.10.1.11' netmask='255.255.255.0'>
<dhcp>
<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
<host mac='0A:AA:FF:C1:A2:EE' name='vsrxa-2' ip='10.10.1.22'/>
<host mac='0A:AA:FF:C1:B1:EE' name='vsrxb-1' ip='10.10.1.23'/>
<host mac='0A:AA:FF:C1:B2:EE' name='vsrxb-2' ip='10.10.1.24'/>
<host mac='0A:AA:FF:C1:C1:EE' name='vsrxc-1' ip='10.10.1.25'/>
<host mac='0A:AA:FF:C1:C2:EE' name='vsrxc-2' ip='10.10.1.26'/>
<host mac='0A:AA:FF:C1:D1:EE' name='vsrxd-1' ip='10.10.1.27'/>
<host mac='0A:AA:FF:C1:D2:EE' name='vsrxd-2' ip='10.10.1.28'/>
</dhcp>
</ip>
</network>
CodePudding user response:
Using bash
and sed
's a
(append) command:
sed '/^[[:blank:]]*<dhcp>[[:blank:]]*$/a'$'\\\n'"$string" "$file_path"
CodePudding user response:
You could use a pattern to match the <dhcp>
part and capture the leading spaces.
Then append the next string, substitute with the full match for the last pattern followed by a newline and the backreference to keep the same indenting.
From that point on, you can extend it with your own indenting.
sed "/^\([[:space:]]*\)<dhcp>/{N;s##&\n\1 $string#}" "$file_path"
Explanation
/^\([[:space:]]*\)<dhcp>/
Natch start of string, capture optional spaces and match<dhcp>
N
Append the next line to the pattern spaces
substitute##
The last matched pattern (I have changed the delimiter of the substitute to#
)&\n\1
Replace with the full match, newline and a backreference to group 1 containing the indenting and add your own indenting
Output
<network>
<name>br-ext</name>
<forward mode='route'/>
<bridge name='br-ext' stp='on' delay='0'/>
<mac address='52:54:00:9f:a0:00'/>
<ip address='10.10.1.11' netmask='255.255.255.0'>
<dhcp>
<host mac='0A:00:DD:D2:00:02' name='vfp-20vr' ip='10.10.1.122'/>
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
<host mac='0A:AA:FF:C1:A2:EE' name='vsrxa-2' ip='10.10.1.22'/>
<host mac='0A:AA:FF:C1:B1:EE' name='vsrxb-1' ip='10.10.1.23'/>
<host mac='0A:AA:FF:C1:B2:EE' name='vsrxb-2' ip='10.10.1.24'/>
<host mac='0A:AA:FF:C1:C1:EE' name='vsrxc-1' ip='10.10.1.25'/>
<host mac='0A:AA:FF:C1:C2:EE' name='vsrxc-2' ip='10.10.1.26'/>
<host mac='0A:AA:FF:C1:D1:EE' name='vsrxd-1' ip='10.10.1.27'/>
<host mac='0A:AA:FF:C1:D2:EE' name='vsrxd-2' ip='10.10.1.28'/>
</dhcp>
</ip>
</network>
CodePudding user response:
try this
#! /bin/bash
file_path="$HOME/test.xml"
content="<host>b</host>"
c=$(echo $content | sed 's/\//\\\//g')
sed "/<\/dhcp>/ s/.*/${c}\n&/" $file_path
CodePudding user response:
strings=" STRING1...\n STRING2...\n ...\n"
match="<dhcp>"
awk -v m="$match" -v s="$strings" '{ print; if($1 == m) printf s }' input_file
<network>
<name>br-ext</name>
<forward mode='route'/>
<bridge name='br-ext' stp='on' delay='0'/>
<mac address='52:54:00:9f:a0:00'/>
<ip address='10.10.1.11' netmask='255.255.255.0'>
<dhcp>
STRING1...
STRING2...
...
<host mac='0A:AA:FF:C1:A1:EE' name='vsrxa-1' ip='10.10.1.21'/>
<host mac='0A:AA:FF:C1:A2:EE' name='vsrxa-2' ip='10.10.1.22'/>
<host mac='0A:AA:FF:C1:B1:EE' name='vsrxb-1' ip='10.10.1.23'/>
<host mac='0A:AA:FF:C1:B2:EE' name='vsrxb-2' ip='10.10.1.24'/>
<host mac='0A:AA:FF:C1:C1:EE' name='vsrxc-1' ip='10.10.1.25'/>
<host mac='0A:AA:FF:C1:C2:EE' name='vsrxc-2' ip='10.10.1.26'/>
<host mac='0A:AA:FF:C1:D1:EE' name='vsrxd-1' ip='10.10.1.27'/>
<host mac='0A:AA:FF:C1:D2:EE' name='vsrxd-2' ip='10.10.1.28'/>
</dhcp>
</ip>
</network>