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Full Discussion: search the largest number and duplicates string
Top Forums Shell Programming and Scripting search the largest number and duplicates string Post 302118040 by fongthai on Friday 18th of May 2007 01:56:49 AM
Old 05-18-2007
OK, base on the above perl script, I can translate it to bash script.
Here is the script:
Code:
name=$1
count=0;
last=0;

while read line
do
        u=`echo $line |sed 's/[0-9]//g'`
        n=`echo $line |sed 's/[a-zA-Z]//g'`
        if [ "$u" = "$name" ]; then
                count=`expr $count + 1`
                if [ $n -gt $last ]; then
                        last=$n
                fi
        fi
done < user.txt
echo $count dups
echo $last is biggest

 

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LEARN ABOUT CENTOS

tping

TPING(1)							   LAM COMMANDS 							  TPING(1)

NAME

       tping - Send echo messages to LAM nodes.

SYNOPSIS

       tping [-hv] [-c count] [-d delay] [-l length] nodes

OPTIONS

       -h	     Print the command help menu.

       -v	     Turn OFF verbose mode.

       -c count      Send count messages.

       -d delay      Delay delay seconds between each message.

       -l length     Each message is length bytes long.

DESCRIPTION

       The  tping  command  sends  messages  to,  and  collects replies from, a list of nodes, via the LAM echo server.  It is similar to the UNIX
       ping(8) command, and is used as a quick diagnosis of the LAM network.

       Unless options are specified, tping sends a 1 byte message an infinite number of times, displaying the roundtrip time of each message as it
       completes,  with  a delay of 1 second between roundtrips.  After the loop is broken (with keyboard interrupt, eg: ^C), tping prints statis-
       tics about all roundtrip messages.

EXAMPLES

       tping h
	   Echo messages to the local node.

       tping -v n7 -l 1000 -c 10
	   Echo 1000 byte messages to node 7.  Stay silent while working.  Stop after 10 roundtrips and report statistics.

BUGS

       There is no built-in timeout and tping will wait forever to receive an echo.  If no echo is received, due to a dead  link  or  node,  tping
       hangs.	Stop  the  process  with  a  keyboard suspend signal (eg: ^Z) and terminate LAM with lamhalt(1) or lamwipe(1) (although the use of
       lamwipe(1) is deprecated).

SEE ALSO

       lamhalt(1), lamwipe(1)

LAM 7.1.4							    July, 2007								  TPING(1)
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