UNIX for Dummies Questions & Answers

Name    m/c        usage
abc         xxx         10 
abc         xxx         20 
abc         xxx         5 
xyz         ddd         15
xyz         ddd         15
xyz         ddd         15
pqr         111         5
pqr         111         5

awk '{a[$1]++}END{for(x in a)if(a[x]>1)for(i=1;i<=a[x];i++)print x}' tmpfile > p3temp.txt
                awk '!_[$0]++' p3temp.txt > p4temp.txt
                while read MAIL; do     mailx -s "xxx!"    –c  admin@email.com  "$MAIL"  –c   < tmpfile; done < p4temp.txt

abc 
xyz
pqr

awk '{a[$1]+=$3}END{for(i in a){print i, a[i]}}' test > output1 
awk '{if ($2 > 25) print $1}' output1 > output2               #### Sorting usage  >25

pqr 10
abc 35
xyz 45

abc
xyz

pqr patt.rich@mnc.com 
abc adam.char@mnc.com
xyz xevior.zoy@mnc.com"]xevior.zoy@mnc.com

awk '
        NR == FNR {
                A[$1] += $3
                next
        }
        {
                E[$1] = $2
        }
        END {
                for ( k in A )
                {
                        if ( A[k] > 25 )
                        {
                                cmd = "echo message body | mailx -s 'subject' " E[k]
                                system ( cmd )
                        }
                }
        }
' input.txt email.txt

cmd = "cat input.txt | mailx -s 'subject' " E[k]

cmd = "< input.txt mailx -s 'subject' " E[k]

cmd = "mailx -s 'subject' " E[k] " < input.txt"