ubuntu 14.04.4 Make install step by step

make help Prerequisites : Ubuntu 12.04 LTS - 32bits, ex:lsb_release -a Cross-compile : arm-linux-gnu-gcc 4.x.x Shell Environment : bash , ex:sudo dpkg-reconfigure dash - select No Tool Install : 1.genext2fs 2.mkimage [u-boot] 3.genromfs 4.make version 3.81 5.file version 5.0 upper 6.sudo apt-get install lzop 7.sudo apt-get install libncurses5-dev liblz4-tool xmlto cramfsprogs squashfs-tools 8.sudo apt-get install texinfo 9.sudo apt-get install openssl libssl-dev [version 1.0.1] 10.sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0



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bash script array sample

To declare an array in bash

Declare and an array called array and assign three values:

array=( one two three )

More examples:

files=( "/etc/passwd" "/etc/group" "/etc/hosts" ) limits=( 10, 20, 26, 39, 48)

To print an array use:

printf "%s\n" "${array[@]}" printf "%s\n" "${files[@]}" printf "%s\n" "${limits[@]}"

To Iterate Through Array Values

Use for loop syntax as follows:

for i in "${arrayName[@]}" do : # do whatever on $i done

$i will hold each item in an array. Here is a sample working script:

#!/bin/bash # declare an array called array and define 3 vales array=( one two three ) for i in "${array[@]}" do echo $i done