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Full Discussion: Help needed with log conversion script.
Top Forums Shell Programming and Scripting Help needed with log conversion script. Post 302408661 by frans on Tuesday 30th of March 2010 06:48:57 AM
Old 03-30-2010
Reviewed script with important modifications :
Code:
#!/bin/bash
Split() {    # Function to make an array with a variable
    eval "$1=( \"$(echo "${!1}" | sed "s/$2/\" \"/g")\" )"
}
while read L
do
    Split L ':' # Makes an array ( 0:Protocol 1:IP 2:Port(s) )
    if [ ${L[0]} = tcp ]
    then
        IP="Logged this from host ${L[1]:2}" # :2 to remove the 2 slashes from host IP
        P=${L[2]}
        Split P ',' # makes an array with port numbers
        if [ "$P" = "*" ]    # case B
        then echo "$IP"
        elif I=$(expr index $P '-') # case D
        then    echo "$IP range ${P:0:$((I-1))} ${P:$I}"
        else # case A & C
            for ((i=0; i<${#P[@]}; i++))
            do
                echo "$IP port ${P[$i]}"
            done
        fi
    else
        echo "Other protocol : ${L[0]}"
    fi
done < infile

 

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LEARN ABOUT PLAN9

split

SPLIT(1)						      General Commands Manual							  SPLIT(1)

NAME

       split - split a file into pieces

SYNOPSIS

       split [ option ...  ] [ file ]

DESCRIPTION

       Split reads file (standard input by default) and writes it in pieces of 1000 lines per output file.  The names of the output files are xaa,
       xab, and so on to xzz.  The options are

       -n     Split into n-line pieces.

       -e expression
	      File divisions occur at each line that matches a regular expression; see regexp(6).  Multiple -e options may appear.   If  a  subex-
	      pression	of  expression is contained in parentheses (...), the output file name is the portion of the line which matches the subex-
	      pression.

       -f stem
	      Use stem instead of x in output file names.

       -s suffix
	      Append suffix to names identified under -e.

       -x     Exclude the matched input line from the output file.

       -i     Ignore case in option -e; force output file names (excluding the suffix) to lower case.

SOURCE

       /sys/src/cmd/split.c

SEE ALSO

       sed(1), awk(1) grep(1), regexp(6)

																	  SPLIT(1)
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