awk 2 files

Shell Programming and Scripting
1

Hello
I have 2 files

file1

/tmp/xxx
/tmp/yyy
/tmp/ccc

file2

/tmp/aaa
/tmp/ccc
/tmp/yyy

I would like have output

/tmp/aaa - NO

So check all entries from file1 in file2 and if entry from file2 not exist in file1 display it.

Can someone help write code in AWK?

2

Are the input files sorted?

3 
sort file1 >file1.tmp
sort file2 >file2.tmp
diff file1.tmp file2.tmp
4 
awk 'FNR==NR {f1[$1];next} !($1 in f1)' file1 file2
5

With a recent bash that provides "process substitution", try

comm -13 <(sort file1) <(sort file2)
/tmp/aaa
6 
#/bin/bash
for i in `cat file2`
do
     grep -w $i file1 > /Dev/null 2>&1 || echo $i
done

---------- Post updated at 03:40 PM ---------- Previous update was at 03:39 PM ----------

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