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Compare an item in one line of a file against an item in the next line of the same file


 
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Top Forums Shell Programming and Scripting Compare an item in one line of a file against an item in the next line of the same file
# 8  
Old 04-19-2020
Many thanks @vgersh99

I deeply appreciate your assistance with this code. I have to run this command on over 50 devices, so I would really much prefer to run the command straight as creating a secondary file on all those devices will create a lot more work.
# 9  
Old 04-19-2020
Quote:
Originally Posted by championc
Many thanks @vgersh99

I deeply appreciate your assistance with this code. I have to run this command on over 50 devices, so I would really much prefer to run the command straight as creating a secondary file on all those devices will create a lot more work.
I don't follow... How creating a single script file will "create a lot more work" whether it gets run against one file/device or 50?
But if you insist:
Code:
#!/bin/ksh
awk '
{
  idx=""
  slide=(/drop/)?2:1
  for(i=1;i<=NF-slide;i++)
     idx=(i==1)?$i:idx $i
}
/drop/{d[idx]=$0;next}
/log/ && (idx in d) {delete d[idx]}
END {
  for(i in d)
    print d[i]
}' ruleSetFile.txt

if you have multiple rule files (1 per device), you can use the above and change it to iterate over your rule fileS.
This User Gave Thanks to vgersh99 For This Post:
# 10  
Old 04-20-2020
You're an absolute star - thank you so much.

My issue was that I have to run it (exactly the same command request) on 50+ (nearer to 100) devices. So being able to logon to each device and just paste in a script on the commd line is so much simpler that needing to create a file on each device.
# 11  
Old 04-20-2020
Quote:
Originally Posted by championc
You're an absolute star - thank you so much.

My issue was that I have to run it (exactly the same command request) on 50+ (nearer to 100) devices. So being able to logon to each device and just paste in a script on the commd line is so much simpler that needing to create a file on each device.
Are you saying you're logging in to each "device" and running the script manually?
You think this would scale?
Why not to invest time/effort into automating this repetitive task?!

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