Shell Programming and Scripting

Hi,

Iam having the files as follows:

file1
aa
aa
aa
aa
ab
ac
ad
ae

file2
aa
aa
ab

Outputfile:
aa
aa

Actually i want to track the file1 and file2 for common records.

output file should get the records that are in file1 and not in file2. Here 4 aa's are there in file1. and 2 aa's are in file2. i jus want to get " 2 aa's in file1 and 4 aa's in file2. so we need to track this aa." like this message should come in the o/p file.



Can anybody help??

It should be " 2 aa's in file2 and 4 aa's in file1. so we need to track this aa.". Isn't it ?

And if you need such a message in the o/p file, awk will help you.

i don't want any messages in o/p file. i just want to tract those records that occur in file1 and file2 more than once.

pls give the help

cat file1 | uniq -c | awk '{ if ($1>1) print $2}'

Try:

Code:

awk 'NR==FNR{a[$0]++;next}
            ( a[$0] >= 2 ){b[$0]++}
END {
for ( i in  b )
    if ( b[i] >= 2)
       print i
}' file1 file2

This awk command is not showing any output.

awk 'NR==FNR{a[$0]++;next}
( a[$0] >= 2 ){b[$0]++}
END {
for ( i in b )
if ( b[i] >= 2)
print i
}' file1 file2

What plataform ?
Use gawk , or /usr/xpg4/bin/awk in Solaris.