Clash Royale CLAN TAG#URR8PPP

How to remove spaces and newline in awk for string insertion?

So, I have my apache2 config file like this:

<Proxy balancer://mycluster>
BalancerMember "ajp://10.x.x.xxx:8009" route=node1 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xx:8009" route=node2 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xxx:8009" route=node3 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xx:8009" route=node4 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xx:8009" route=node5 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xx:8009" route=node6 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
BalancerMember "ajp://10.x.x.xxx:8009" route=node7 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60
ProxySet lbmethod=byrequests
</Proxy>


What I want to do is insert a new BalancerMember with # before the line ProxySet lbmethod=byrequests. I will use shell script to do this.

ProxySet lbmethod=byrequests

So it should look like: #BalancerMember "ajp://10.x.x.xxx:8009" route=node8 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60

#BalancerMember "ajp://10.x.x.xxx:8009" route=node8 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60

What I have tried is:

awk -v s1='"' -v ip="10.0.7.1" -v no="8" '
/ProxySet lbmethod=byrequests/
print "ntt#BalancerMember " s1 "ajp://" ip ":8009" s1 " route=node" no " loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60"
next

1' /tmp/000-site.conf > /tmp/000-site.conf.tmp && mv /tmp/000-site.conf.tmp /tmp/000-site.conf
}


So, the above solutions works fine, but leaves newlines, which I don't want. I have tried removing ORS.

print "n..."

n

1 Answer
1

Could you please try following.(Creating variable line of awk which will have your new line's value in it)

line

awk

awk -v line='#BalancerMember "ajp://10.x.x.xxx:8009" route=node8 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60' '
/ProxySet lbmethod=byrequests/
print " " line ORS $0
next

1' Input_file


Explanation: Adding explanation for above code here.

awk -v line='#BalancerMember "ajp://10.x.x.xxx:8009" route=node8 loadfactor=1 keepalive=on ttl=300 max=400 timeout=300 retry=60' ' ##Creating variable line.
/ProxySet lbmethod=byrequests/ ##Checking condition here if a line has string ProxySet lbmethod=byrequests then do following.
print " " line ORS $0 ##Printing space then variable line ORS and then print currrent line value then.
next ##Mentioning next out of the box keyword to skip all further statements.

1 ##Mentioning 1 will print the lines here, awk works on condition then action, making condition true here, print action will happen.
' Input_file ##Mentioning Input_file name here.


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