Print all fields line by line. Sorta like cut but knows only one column and outputs all fields.

cuttoline.sh

#!/bin/bash

Base="$(basename -s'.sh' "$0")"


Help()
{
    cat <<!
Print all fields line by line.

Usage:

    \$ $Base [-d'DELIMITER'] [-q'QUOTE'] STRING
    \$ $Base [--delim 'DELIMITER'] [--quote 'QUOTE'] STRING

    DELIMITER (optional)
        The delimiter to use for parsing and separating elements inside the
        string. Default = IFS.

    QUOTE (optional)
        If provided, each element will be quoted when output.
        Default = no quote.

    STRING
        The text that will be parsed according to DELIMITER.

    DELIMITER and QUOTE may be provided using long or short form of the option.
    In short form there should be no space between the switch and the value,
    whereas there should be one with long form.

    Not specifying the delimiter may lead to unexpected output in some cases.
!
}


HelpMessage()
{
    echo "Type $Base --help for information."
}


# parse help
for Arg in "$@"
do
	case "$Arg" in '--help'|'-h'|'-help'|'--h')
		Help
        exit 0
	esac
done


# check args
if [[ $# -lt 1 ]]
then
    echo 'Need at least one argument.'
    HelpMessage
    exit 1
fi


# globals
declare -A Option=([delim]=$IFS [quote]='')
declare Target=''


# utils for options
SetOpt()
{
    Option[$1]="$2"
}

SetShortOpt()
{
    SetOpt $1 "${2:2:${#2}}"
}


# parse arguments
while [[ $# -ne 0 ]]
do
    if [[ "$1" =~ ^-q.*$ ]]; then
        SetShortOpt quote "$1"

    elif [[ "$1" == '--quote' ]]; then
        shift
        SetOpt quote "$1"

    elif [[ "$1" =~ ^-d.*$ ]]; then
        SetShortOpt delim "$1"

    elif [[ "$1" == '--delim' ]]; then
        shift
        SetOpt delim "$1"

    elif [[ "$1" == '--' ]]; then
        shift
        Target="${@}"
        break

    else
        Target="${@}"
        break

    fi

    shift
done


# edge case checking
if [[ -z $Target ]]
then
    echo 'No string to parse.'
    HelpMessage
    exit 1
fi


# parse input
IFS="${Option[delim]}" Arr=($Target)


# output
if [[ -n ${Option[quote]} ]]
then
    declare -r Quote="${Option[quote]}"

    for Elem in "${Arr[@]}"
    do
        echo "${Quote}${Elem}${Quote}"
    done

else
    for Elem in "${Arr[@]}"
    do
        echo "$Elem"
    done
fi