[SOLVED] Search file A for a list of strings located in file B and append the value associated with that string to the end of the line in file A

Issue

This is a bit complicated, well I think it is..

I have two files, File A and file B

File A contains delay information for a pin and is in the following format

AD22 15484
AB22 9485
AD23 10945

File B contains a component declaration that needs this information added to it and is in the format:

'DXN_0':
PIN_NUMBER='(AD22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
'DXP_0':
PIN_NUMBER='(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,AD23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
'VREFN_0':
PIN_NUMBER='(AB22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';

So what I am trying to achieve is the following output

'DXN_0':
PIN_NUMBER='(AD22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='15484';
'DXP_0':
PIN_NUMBER='(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,AD23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='10945';
'VREFN_0':
PIN_NUMBER='(AB22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='9485';

There is no order to the pin numbers in file A or B

So I'm assuming the following needs to happen

• open file A, read first line
• search file B for first string field in the line just read
• once found in file B at the end of the line add the text "\nPIN_DELAY='"
• add the second string filed of the line read from file A
• add the following text at the end "';"
• repeat by opening file A, read the second line

I'm assuming it will be a combination of sed and awk commands and I'm currently trying to work it out but think this is beyond my knowledge. Many thanks in advance as I know it's complicated..

Solution

awk to the rescue...

$ awk -vq="'" 'NR==FNR{a[$1]=$2;next} {print; for(k in a) if(match($0,k)) {print "PIN_DELAY=" q a[k] q ";"; next}}' keys data 

'DXN_0':
PIN_NUMBER='(AD22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='15484';
'DXP_0':
PIN_NUMBER='(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,AD23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='10945';
'VREFN_0':
PIN_NUMBER='(AB22,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)';
PIN_DELAY='9485';

Explanation: scan the first file for key/value pairs. For each line in the second data file print the line, for any matching key print value of the key in the requested format. Single quotes in awk is little tricky, setting a q variable is one way of handling it.

Answered By - karakfa

Answer Checked By - Terry (WPSolving Volunteer)