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Better off with:

expect {
-re "(.*)hi" { perform action }
-re "(.*)hello" { perform action }
-re "(.*)bye" { perform action }
}

With a -re it will match to...

Hi,

Take a look at Tcl/Expect it will allow you to automate pretty much any text based / command line apps.

e.g. spawn telnet localhost
expect "ogin:"
send "<login name>\r"
...

I have put your values into a test file, a.txt

cat a.txt

s6 98
s6 91
s6 56
s5 32
s5 10
s5 4

The following gives you what you want:

sort a.txt | awk 'BEGIN {x="";y=0;cnt=0;}{if (x...