How to replace pairs of strings in two files to identical IDs?

Answer 1

I think this does the trick, or at least comes close

#!/bin/sh
for PREFIX in file1 file2
do
    cp ${PREFIX}.log /tmp/filter.$$.txt
    FILE_MAP=`egrep -o -e 'ClassLoader[0-9a-f]*@[0-9a-f]+' ${PREFIX}.log | uniq | egrep -n .`
    for MAP in `echo $FILE_MAP`
    do
        NUMBER=`echo $MAP | cut -d : -f 1` 
        WORD=`echo $MAP | cut -d : -f 2`
        sed -e s/$WORD/ClassLoader@$NUMBER/g /tmp/filter.$$.txt > ${PREFIX}_processed.log
        cp ${PREFIX}_processed.log /tmp/filter.$$.txt
    done
    rm /tmp/filter.$$.txt
done

Let me know if you have questions on how it works and why.

Here's my test data and the output

file1.log:

A1
UnifiedClassLoader3@a45bc1
A2
UnifiedClassLoader3@a45bc1
A3
UnifiedClassLoader3@a45bc1
A4
JBossRMIClassLoader@bc450a
A5
JBossRMIClassLoader@bc450a
A6
JBossRMIClassLoader@bc450a

B1
UnifiedClassLoader3@a45bc2
B2
UnifiedClassLoader3@a45bc2
B3
UnifiedClassLoader3@a45bc2
B4
JBossRMIClassLoader@bc450b
B5
JBossRMIClassLoader@bc450b
B6
JBossRMIClassLoader@bc450b

C1
UnifiedClassLoader3@a45bc3
C2
UnifiedClassLoader3@a45bc3
C3
UnifiedClassLoader3@a45bc3
C4
JBossRMIClassLoader@bc450c
C5
JBossRMIClassLoader@bc450c
C6
JBossRMIClassLoader@bc450c

file2.log (Similar patterns except the "C" set repeats the "A" set)

A1
UnifiedClassLoader3@d0357a
A2
UnifiedClassLoader3@d0357a
A3
UnifiedClassLoader3@d0357a
A4
JBossRMIClassLoader@191777e
A5
JBossRMIClassLoader@191777e
A6
JBossRMIClassLoader@191777e

B1
UnifiedClassLoader3@d0357b
B2
UnifiedClassLoader3@d0357b
B3
UnifiedClassLoader3@d0357b
B4
JBossRMIClassLoader@191777f
B5
JBossRMIClassLoader@191777f
B6
JBossRMIClassLoader@191777f

C1
UnifiedClassLoader3@d0357a
C2
UnifiedClassLoader3@d0357a
C3
UnifiedClassLoader3@d0357a
C4
JBossRMIClassLoader@191777e
C5
JBossRMIClassLoader@191777e
C6
JBossRMIClassLoader@191777e

And after processing you get file1_processed.log

A1
UnifiedClassLoader@1
A2
UnifiedClassLoader@1
A3
UnifiedClassLoader@1
A4
JBossRMIClassLoader@2
A5
JBossRMIClassLoader@2
A6
JBossRMIClassLoader@2

B1
UnifiedClassLoader@3
B2
UnifiedClassLoader@3
B3
UnifiedClassLoader@3
B4
JBossRMIClassLoader@4
B5
JBossRMIClassLoader@4
B6
JBossRMIClassLoader@4

C1
UnifiedClassLoader@5
C2
UnifiedClassLoader@5
C3
UnifiedClassLoader@5
C4
JBossRMIClassLoader@6
C5
JBossRMIClassLoader@6
C6

and file2_processed.log

A1
UnifiedClassLoader@1
A2
UnifiedClassLoader@1
A3
UnifiedClassLoader@1
A4
JBossRMIClassLoader@2
A5
JBossRMIClassLoader@2
A6
JBossRMIClassLoader@2

B1
UnifiedClassLoader@3
B2
UnifiedClassLoader@3
B3
UnifiedClassLoader@3
B4
JBossRMIClassLoader@4
B5
JBossRMIClassLoader@4
B6
JBossRMIClassLoader@4

C1
UnifiedClassLoader@1
C2
UnifiedClassLoader@1
C3
UnifiedClassLoader@1
C4
JBossRMIClassLoader@2
C5
JBossRMIClassLoader@2
C6
JBossRMIClassLoader@2