
cat 1.txt |awk ‘{print$1}‘ >a
cat 1.txt |awk ‘{print$2}‘ >b
cat a b >all
awk '{ for(i=1i<=length($0)i++)col[i]=col[i] substr($0,i,1)
}
END { i=1
while (i in col)
{
print col[i]
i++
}
}' filename
sh-3.2# echo `cat c`0 -0 0 0 0 0 0 0 -0 0 -0 0
sh-3.2# cat c
0
-0
0
0
0
0
0
0
-0
0
-0
0
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