A simple shell script that checks minimal requirement to compile Linux kernel

checklinuxbuildminimalrequirement.sh

#!/bin/bash
programs=(
    "GNU C                  4.6    "
    "GNU make               3.81   "
    "binutils               2.23   "
    "flex                   2.5.35 "
    "bison                  2.0    "
    "util-linux             2.10o  "
    "kmod                   13     "
    "e2fsprogs              1.41.4 "
    "jfsutils               1.1.3  "
    "reiserfsprogs          3.6.3  "
    "xfsprogs               2.6.0  "
    "squashfs-tools         4.0    "
    "btrfs-progs            0.18   "
    "pcmciautils            004    "
    "quota-tools            3.09   "
    "PPP                    2.4.0  "
    "nfs-utils              1.0.5  "
    "procps                 3.2.0  "
    "oprofile               0.9    "
    "udev                   081    "
    "grub                   0.93   "
    "mcelog                 0.6    "
    "iptables               1.4.2  "
    "openssl & libcrypto    1.0.0  "
    "bc                     1.06.95"    
)

commands=(
    "gcc --version"
    "make --version"
    "ld -v"
    "flex --version"
    "bison --version"
    "fdformat --version"
    "depmod -V"
    "e2fsck -V"
    "fsck.jfs -V"
    "reiserfsck -V"
    "xfs_db -V"
    "mksquashfs -version"
    "btrfsck"
    "pccardctl -V"
    "quota -V"
    "pppd --version"
    "showmount --version"
    "ps --version"
    "oprofiled --version"
    "udevd --version"
    "grub --version || grub-install --version"
    "mcelog --version"
    "iptables -V"
    "openssl version"
    "bc --version"    
)

for((i=0; i < ${#programs[@]};i++)) do

    echo -e '\033[33mRequires: ' ${programs[i]} '\033[0m';
    # ^\b\w*\b
    if ! type $(echo ${commands[i]} | grep -Eo '^\b\w*\b') > /dev/null; then
        echo -e "\033[31mNot Satisfied\033[0m";
    else
        echo -e '\033[32mInstalled:';
        ${commands[i]};
        echo -e '\033[0m';
    fi
    
    echo -e '\033[35m====================================================================\033[0m';

done