Please Help:Need to Split the file into mutliple files depends on the KEY field value - UNIX for Dummies Questions & Answers

arund_01 · #1 04-16-2008

Hi Gurus,

I am new to UNIX(HP). my requirmnet is File needs to needs to be split into multiple files dependa on one key value.
example
1 abc 333 us
2 bbc 444 ch
5 nnn 333 kk
7 hhh 555 ll
3 hhh 333 hh

now the requirment is line with 333 should be copied into test1.txt and the rest to test2.txt.

normally i will recieve 2 files name a1.txt and a2.txt once a daily to one of my server . Depends on the condition i need to split the files and send it to 2different servers.

appreciate your help on the above.

Thanks
Arun

jim mcnamara · #2 04-16-2008

Code:

awk '{ if ($3 == "333") {print $0 > test1.txt}
         else { print $0 > test2.txt} 
       } ' inputfile

era · #3 04-16-2008

Or try

Code:

grep 333 inputfile >test1.txt
grep -v 333 inputfile >test2.txt

If you know the value 333 is always in the third field then by all means use the awk script. (On the other hand, it's certainly possible to construct a regular expression for grep to express the same constraint.)

arund_01 · #4 04-16-2008

Thanks Jim,

but when i appy the same code i am getting error like below. i don;t know why.

awk ' { if ($3 == "RD018414292") {print $0 > test1.txt} else { print $0 > test2.txt} } ' arigmrec03_2007_02_02_15_06_59_505.success
syntax error The source line is 1.
The error context is
{ if ($3 == "RD018414292") {print $0 > >>> test1. <<< txt} else { print $0 > test2.txt} }
awk: The statement cannot be correctly parsed.
The source line is 1.

is that $3 in if statment refers to 3rd column? but my actual file cotains may fileds; i have just copied one line below.

200804NA441200119000000000000000200804083727708DELPHI DELCO ELECTRONICS EFTRD002136823A8020570218671R08098 -00000000131541012900015979340420080327GM 56741 0000000000000NN DELPHI DELCO ELECTRONICS EFTOSYNDCN052777597 200804042304 SPON USD-000000001315410USD 000001000000000 20080502

in that above line i need to capture a field value(RD002136823) starting at the position 78 and ending at 89 into another file.

also can i give multiple files as input to code?

waiting for your response
Arun

era · #5 04-16-2008

Try the grep above (we seem to have posted at exactly the same time). You can give multiple files as input to most Unix commands.

Code:

grep    RD018414292 file1 file2 file3 >have
grep -v RD018414292 file1 file2 file3 >have.not

arund_01 · #6 04-16-2008

Hi Era,

Thanks for the help. but requirment is little bit different. you have given example for a single value search, but i want to search multiple values in given files and put result into single file.

waiting for your response.

Thanks
Arun

era · #7 04-16-2008

Different values in different files, or multiple values in multiple files, or different sets of values in different sets of files?

Code:

egrep 'first|second|third' file1 file2 file3 >have
egrep -v 'first|second|third' file1 file2 file3 >have.not

If the value is different for each file, you need a loop.

Code:

>have; >have.not  # make sure they're empty before we start
while read file value; do
  grep    "$value" "$file" >>have
  grep -v "$value" "$file" >>have.not
done <<HERE
file1  first
file2  second.*rege[xz]magic$
file3  how sweet I roam from field to field
HERE

This is to illustrate that you can have fairly complex "value" fields in the here document. You probably don't need that flexibility for this particular problem, but if you do, it's there. (And if you need to search for stuff which has special meaning in regular expressions, such as asterisks or dollar signs, you need to escape them, or something.)

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