csv_line.sh

#!/bin/bash

show_help()
{
    cat <<EOB
Usage: ${0##*/} [-h] [-t sep] [-n num] file
Display a row in CSV file with header vertially.
Options:
    -t specify field separator, default is tab
    -n specify line to show, default is 1 
EOB
}


sep=$'\t'
num=1

OPTIND=1

while getopts hn:t: opt; do
    case "$opt" in
        h)  
            show_help
            exit 0
            ;;
        n)  
            num=$OPTARG
            ;;
        t)  
            sep=$OPTARG
            ;;
        *)  
            show_help
            exit 1
            ;;
    esac
done

csv=${@:$OPTIND:1}

if [[ ! -f "$csv" ]]; then
    show_help
    exit 1
fi

num=$((num+1))

paste <(gunzip -cf "$csv" | head -1 | tr "$sep" '\n') <(gunzip -cf "$csv" | tail -n+$num | head -1 | tr "$sep" '\n') | column -ts"$sep"

# vi:syntax=bash