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Remove multiple lines that match pattern

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# 1  
Old 03-10-2015
Remove multiple lines that match pattern
Not sure how I can accomplish this. I would like to remove all interfaces that have the commands I would like to see: switchport port-security, spanning-tree portfast. One line is no problem.

Code:
interface FastEthernet0/8
 spanning-tree portfast 
interface FastEthernet0/9
 spanning-tree portfast
interface FastEthernet0/10 
 spanning-tree portfast
interface FastEthernet0/11
 switchport port-security
 spanning-tree portfast
interface FastEthernet0/12

I would like the results to be
Code:
interface FastEthernet0/8
 spanning-tree portfast 
interface FastEthernet0/9
 spanning-tree portfast
interface FastEthernet0/10 
 spanning-tree portfast
interface FastEthernet0/12


Thanks
# 2  
Old 03-10-2015
Not clear. Do you want to remove those interfaces that have both commands trailing?
# 3  
Old 03-10-2015
Quote:
Originally Posted by RudiC
Not clear. Do you want to remove those interfaces that have both commands trailing?
Yes, correct.
# 4  
Old 03-10-2015
Try
Code:
awk     'function PRTOUT()      {if (SW&&ST) return;
                                 print IN; if (SW) print SW; if (ST) print ST};
         /interface/            {if (NR > 1) PRTOUT();  SW=ST=""; IN=$0}
         /switchport/           {SW=$0}
         /spanning-tree/        {ST=$0}
         END                    {PRTOUT()}
        ' file
interface FastEthernet0/8
 spanning-tree portfast 
interface FastEthernet0/9
 spanning-tree portfast
interface FastEthernet0/10 
 spanning-tree portfast
interface FastEthernet0/12

# 5  
Old 03-10-2015
Try:
Code:
awk '/interface/{print x}1' file | awk '!(/switchport port-security/ && /spanning-tree portfast/)' RS=

Code:
interface FastEthernet0/8
 spanning-tree portfast 
interface FastEthernet0/9
 spanning-tree portfast
interface FastEthernet0/10 
 spanning-tree portfast
interface FastEthernet0/12

This User Gave Thanks to Scrutinizer For This Post:
mrlayance
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