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# 1  
Old 09-30-2009
awk for join
Is it possible to do this with awk command??

sort1.txt
Code:
a    10
b    20

sort2.txt
Code:
a
b
c
d

join command

Code:
join sort1.txt sort2.txt && join -v1 sort2.txt sort1.txt

output
Code:
a    10
b    20
c
d

Thanx

---------- Post updated at 05:44 PM ---------- Previous update was at 05:35 PM ----------

I come up with this. working fine but still has some join command in it

Code:
gispc290 ~/Desktop
$ awk 'NR==FNR{_[$1]=$1;next}$1 in _{print _[$1],$2,$3}' sort2.txt sort1.txt && join -v1 sort2.txt sort1.txt



---------- Post updated at 05:58 PM ---------- Previous update was at 05:44 PM ----------

May be this
Code:
gispc290 ~/Desktop
$ awk 'NR==FNR{_[$1]=$1;next}$1 in _{print _[$1],$2,$3}' sort2.txt sort1.txt && awk 'FNR==NR{a[$1]++;next}!a[$1] {print $0}' sort1.txt sort2.txt

# 2  
Old 10-01-2009
Quote:
Originally Posted by repinementer
Code:
$ awk 'NR==FNR{_[$1]=$1;next}$1 in _{print _[$1],$2,$3}' sort2.txt sort1.txt && awk 'FNR==NR{a[$1]++;next}!a[$1] {print $0}' sort1.txt sort2.txt

Please don't do that Smilie, if not you can win the Useless Use of Cat Award

Try
Code:
# awk 'NR==FNR{a[$1]=$2;next}{print $1,a[$1]}' sort1 sort2

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