Yoda's code will find a match if any subpart of field 4 in file2 is matched by field 2 in file1. Akshay's code will find a match only if the 2nd subpart of field 4 in file 2 is matched by field 2 in file1.
If I read your requirements correctly, I think Yoda's interpretation is what was wanted. The following is an alternative approach that should produce the same output. Depending on the sizes of the input files, this should run faster but use a little more memory:
Note that if there are multiple lines in file2 with with identical subfields in field4, this will print the last match rather than the 1st. If you need the 1st instead of the last match, change:
to:
If you want to try this on a Solaris/SunOS system, use /usr/xpg4/bin/awk, /usr/xpg6/bin/awk, or nawk instead of awk.
These 2 Users Gave Thanks to Don Cragun For This Post:
Hi
First post on here hope you can help with something
I have a file with a couple of thousand lines (all lines are one string long, i.e a number
I have another file that is over 1 million lines long
Example entry from file 1
123456
Example from file 2
123456 mjhyuihbn ... (5 Replies)
how to grep a file based on another input file
File1
ashu 1 ninetwo hari
qwer 6 givefour jan
fghj 8 noeight mar
vbmi 7 noput feb
--
---
File2
noput
noeight
---
--
Taking the input of grep as File2, a search need to be made in File1 giving File3 as output: (7 Replies)
does any one know how to turn the equivalent of this command:
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to
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Please help ! Thanks. (8 Replies)
Hi All,
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Hello,
I have a file with a large number of words each listed in sequential order one word per line.
I want to search these words in another file which has the structure
Both the files are large, but the words in the sourcefile are all available in the target file.
I tried to grep... (2 Replies)
So I'm stumped.
First... APOLOGIES... my work is offline in an office that has zero internet connectivity, as required by our client. If need be, I could print out my script attempts and retype them here. But on the off chance... here goes.
I have a text file (file_source) of terms, each line... (3 Replies)