update bashToBatch.md and add the first script in .bat but it isn't 100% translated

Copyright (C) 2020 ECORP SAS - Author: Vincent Bourgmayer

Conversion bash to batch

Conversion from bash to batch

This files contains mapping of bash command for batch

# Expression bash  => batch

This files contains mapping of bash command for batch and sometimes to OSX command

# Expression bash  => batch => osx

## Declaration

- `var="foo" => `set "var=foo"`

- `var=1` => `set /a "var=1"

## Process

- `exit 101` => `exit /b 101`

- `if [ $? > 0]` => `if not errorLevel 1 <cmd>` 

- `if [ $? = 0]` => `if not errorLevel 1 <cmd>` 

- `var=$1` => `set "var=%1"`

## Other

- `sha256sum -c ${FILENAME}.sha256sum` => `certUtil ??????????`

- `wget` => `curl` 

- `sha256sum -c filename` => `certUtil -hashfile filename SHA256` => `shasum -a 256 filename` 

- `wget -O path/to/localFile <URL>` => `curl -o path\to\localFile <URL>` 

- `ping -c` => `ping -r`

# Copyright (C) 2019-2020 ECORP SAS - Author: Romain Hunault, Vincent Bourgmayer

#

# This program is free software: you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation, either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# Parameter

# %1: ARCHIVE_URL

# %2: FOLDER (will be created if doesn't exist)

# Exit status

# - 0 : archive downloaded

# - 1 : Generic error code (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 2 : Parse error—for instance, when parsing command-line options, the ‘.wgetrc’ or ‘.netrc’... (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 3 : File I/O error (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 4 : Network failure (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 5 : SSL verification failure (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 6 : Username/password authentication failure (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 7 : Protocol errors (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 8 : Server issued an error response (see wget exit status here: https://www.gnu.org/software/wget/manual/html_node/Exit-Status.html)

# - 10: No internet connection

# - 11: Invalid file downloaded

# - 101 : ARCHIVE_URL missing

# - 102 : FOLDER missing

set "ARCHIVE_URL=%1"

set "FOLDER=%2"

if not ping -r 1 gitlab.e.foundation 2>&1 >/dev/null

  exit /b 10

if not defined FOLDER

  exit /b 101

if not defined ARCHIVE_URL

  exit /b 102

mkdir %FOLDER%

# I'm not certain of the below block

set "FILENAME="

for %%a in ARCHIVE_URL do (

	set "FILENAME= %~na"

)

curl -o %FOLDER%"\"%FILENAME%".sha256sum" %ARCHIVE_URL%".sha256sum"

# the following two lines should be the last to transform into batch

FOLDER_ESCAPED=echo %FOLDER% | sed 's/\/$//' | sed 's/\//\\\//g'

# this is a simple concatenation or injection

sed -i 's/\(.*\)  \(.*\)/\1 '${FOLDER_ESCAPED}'\/\2/' ${FOLDER}/${FILENAME}.sha256sum

if not errorLevel 1 CertUtil -hashfile  %FOLDER%"\"%FILENAME%".sha256sum"

  exit /b 0

curl -o %FOLDER%"\"%FILENAME}% ARCHIVE_URL

if errorLevel 1 CertUtil -hashfile %FOLDER%"\"%FILENAME%".sha256sum"

  rm ${FILENAME}

  exit /b 11