Linux String Substitute KodeKloud Engineer Task Success

Question :   The backup server in the Stratos DC contains several templated XML files used by the Nautilus application. However, these template XML. files must be populated with valid data before they can be used.

Replace all occurrences of the string About to Cloud on the XML file /root/nautilus.xml located in the backup server.

Please Note :-  Perform the below commands based on your question  server,  user name & other details might differ . So please read task carefully before executing. All the Best 👍

Solution:  

1. At first login on Backup server  & Switch to  root user 

thor@jump_host ~$ ssh clint@stbkp01 The authenticity of host 'stbkp01 (172.16.238.16)' can't be established. ECDSA key fingerprint is SHA256:QxlPU0/gV0gyK8YIJGOoEnxj57cSuTtirpTMzGdgKTM. ECDSA key fingerprint is MD5:9f:8e:c0:1d:38:01:56:86:6d:85:b3:3f:69:6a:7c:44. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added 'stbkp01,172.16.238.16' (ECDSA) to the list of known hosts. clint@stbkp01's password: [clint@stbkp01 ~]$ sudo su -  We trust you have received the usual lecture from the local System Administrator. It usually boils down to these three things:      #1) Respect the privacy of others.     #2) Think before you type.     #3) With great power comes great responsibility.  [sudo] password for clint: [root@stbkp01 ~]#

2. Pull out the string About on the XML file /root/nautilus.xml

[root@stbkp01 ~]# cat /root/nautilus.xml  |grep About  | wc -l 66 [root@stbkp01 ~]# cat /root/nautilus.xml  |grep About       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre>       <genre>About</genre> [root@stbkp01 ~]#

4. Replace the string  About  to Cloud with the help of sed command

[root@stbkp01 ~]# sed -i 's/About/Cloud/g' /root/nautilus.xml [root@stbkp01 ~]#

5. confirm the change in string Cloud 

[root@stbkp01 ~]# cat /root/nautilus.xml  |grep Cloud       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre>       <genre>Cloud</genre> [root@stbkp01 ~]# cat /root/nautilus.xml  |grep Cloud |wc -l 66 [root@stbkp01 ~]# cat /root/nautilus.xml  |grep About  | wc -l 0

6. Click on Finish & Confirm to complete the task successful

Happy Learning!!!!

Apart from this if you need more clarity,  I have made a  tutorial video on this 

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