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How to Fetch latest version form a file?

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# 1  
Old 05-07-2018
Lightbulb How to Fetch latest version form a file?
Hi,

I have a file where versions will be updated, i need to get latest/last updated version from that file. Could you please help?
File looks like below -
Code:
 <versions>
      <version>R20180417.006</version>
      <version>R20180421.007</version>
      <version>R20180421.008</version>
      <version>R20180421.009</version>
      <version>R20180421.048</version>
      <version>R20180421.049</version>
      <version>R20180421.050</version>
      <version>R20180421.051</version>
      <version>R20180421.052</version>
      <version>R20180421.053</version>
      <version>R20180421.054</version>
</versions>

Last edited by vbe; 05-07-2018 at 11:37 AM.. Reason: code tags please
# 2  
Old 05-07-2018
Hello schandra128,

In case your latest version is always coming on 2nd last line of Input_file then following may help you on same.
Code:
tail -2 Input_file | head -1

Thanks,
R. Singh
# 3  
Old 05-07-2018
Code:
awk -F"[<>]" '$3 > version {version=$3} END {print version}' infile

This User Gave Thanks to rdrtx1 For This Post:
schandra128
# 4  
Old 05-07-2018
Quote:
Originally Posted by RavinderSingh13
Hello schandra128,

In case your latest version is always coming on 2nd last line of Input_file then following may help you on same.
Code:
tail -2 Input_file | head -1

Thanks,
R. Singh
Thanks Ravinder for the response. but it will not be second line always actually. i just copied part of the file.
# 5  
Old 05-07-2018
Hello schandra128,

Following may help you on same.
Code:
awk -F">R|<" '{val=$3>prev?$3:prev;prev=$3} END{print val}' Input_file

Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
schandra128
# 6  
Old 05-07-2018
Quote:
Originally Posted by rdrtx1
Code:
awk -F"[<>]" '$3 > version {version=$3} END {print version}' infile

thank you for the response and solution, it worked Smilie

- Chandra
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