Print out sections

gistfile1.pl

# Useful command to get the group of log lines that:
#   - Start with a keyword
#   - End with a keyword
# Works on gzip files as well
# Breaks all groups by printing ---- in between as well.
# Note: Only works well when you have a well defined begin and end keyword else everything might be printed out
group() #Usage = 'group filename printBeginKeyword printUntilKeyword NumOfLines' // Works with regex
{
    if [[ "$#" -lt 3 ]]
    then
        echo ...... Number of arguments are not enough. Please try again..
        echo _____ Usage=\"group FileName   PrintBeginKeyword   PrintUntilKeyword NumOfLines\[Optional,default=50\]\"
        echo _____ Example=group tmp.log    wotDA5              op_if_sell_c      55
        return
    fi

    NUM_LINES=50
    if [[ "$#" -gt 3 ]]
    then
        NUM_LINES=$4
    fi
    VERBOSE=1
    if [ $VERBOSE -eq 1 ]
    then
        echo Begin Section=$2
        echo End Section=$3
        echo File=$1
        echo NUM of lines=$NUM_LINES
    fi

    if [[ $1 == *.gz ]]
        then
            GREP_RESULT='gunzip -c $1 | grep -A $NUM_LINES $2'
    else
            GREP_RESULT='grep -A $NUM_LINES $2 $1'
    fi

    eval $GREP_RESULT | awk 'BEGIN { TO_PRINT=0 }   \
                            /'$2'/ { TO_PRINT=1; } \
                            /'$3'/ { if (TO_PRINT==1) print $0  "\n------------------------" ; TO_PRINT=0; } \
                            ( TO_PRINT==1 )  { print $0  }  '
}