Bash: Pulling first and last character in string Post: 302962318

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Top Forums Shell Programming and Scripting Bash: Pulling first and last character in string Post 302962318 by petfyp on Friday 11th of December 2015 06:00:38 PM

12-11-2015

Registered User

Bash: Pulling first and last character in string

I am writing a bash script that will find all references to the “Well_List” in the “Comp_File”.

I am filtering a Well_List that contains the following:

Code:

 TEST_WELL_01
 TEST_WELL_02
 TEST_WELL_11
 TEST_WELL_22
 GOV_WELL_1
 GOV_WELL_201
 PUB_WELL_57
 PUB_WELL_82
 . 
 .

Comparison File contains (Comp_File):

Code:

 /drive/t/Asset/13_Wells/Test_Well_1/LAS_and_LIS/LL3.LIS
 /drill/t/Cnt-143/Wells/Gov_Well-201/Drilling/Government_Well_Mnemonics.dlis
 /drill/t/Cnt-143/Wells/Gov_Well-201/Drilling/LL3_0893780002.LIS
 /drive/t/Asset/13_Wells/Test_Well-011/LAS_and_LIS/LL3_9367000.LIS
 /drive/r/Asset/13_Wells/Test_Well-01/LAS_and_LIS/LL3_9367000.LIS
 /drill/t/Cnt-143/Wells/Gov_Well-01/Drilling/Government_Well_Mnemonics.dlis
 /drive/w/Asset/13_Wells/Public_Well_82/County_82/NEUT&DN.LIS
 .
 .

I’ve gone through many of the existing submissions on your webpage, but can’t find what I need. Unfortunately, I’m fairly new to sed which I figured will be needed here. I can perform this task individually (see Code below), but need to get both to perform the search I need in “Comp_File”

Code:

Last field of Well_List line: 

for x in `cat Well_List; do; awk –F_ ‘{print $NF}’; done

Code:

First field: 
 for x in `cat Well_List; do; awk '{print substr($0,1,1)}'; done

Although I couldn’t resolve the difference between “Test_Well_1” and Test_Well_01” in my script, which both belong under the same Well Name.

Each comparison result will be placed in an individual file that will be titled after the “Well_List” Well Name (example: TEST_WELL_01.txt)

I hope I didn’t confuse anyone with this. I’ve spent most of today trying to figure this out…..

Could anyone provide some assistance in getting this done? If additional information is needed, please let me know.

Thanks!

Last edited by Scrutinizer; 12-12-2015 at 04:15 AM.. Reason: Removed spurious formatting

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