how to filter out some paragraphs in a file - Shell Programming and Scripting

Corona688 · #2 (**permalink**) 06-08-2006

I'm assuming the horizontal lines aren't actually in the file, and are just used instead of

Code:

code tags

Code tags are better because they preserve spacing.

Here's a script:

Code:

#!/bin/sh

SHOULDPRINT=1

function do_flush
{
        if [[ ${SHOULDPRINT} -eq 1 && ! -z ${OUT} ]]
        then
                echo "${OUT}"
        fi
}

while read LINE
do
        if [[ -z ${LINE} ]]
        then
                do_flush
                OUT=""
                SHOULDPRINT=1
        elif    echo "${LINE}" | egrep -q "CONNECT|alter system switch logfile"
        then
                SHOULDPRINT=0
        else
                if [[ -z ${OUT} ]]
                then
                        OUT="
${LINE}"
                else
                        OUT="${OUT}
${LINE}"
                fi
        fi
done
do_flush