CHECKSUM=$(md5sum $(myfile))

test:
    CHECKSUM=$(md5sum $(myfile))
    echo $$CHECKSUM

test:
    CHECKSUM=$(md5sum $(myfile)); echo $$CHECKSUM

test:
    CHECKSUM=$(md5sum $(myfile));
    echo $$CHECKSUM;
    echo $$CHECKSUM;

CHECKSUM := $(shell md5sum $(myfile))

SHELL:=/bin/bash
ANACONDA_MD5:=c989ecc8b648ab8a64731aaee9ed2e7e

none:

Anaconda3-5.0.1-Linux-x86_64.sh:
    wget https://repo.continuum.io/archive/Anaconda3-5.0.1-Linux-x86_64.sh

download: Anaconda3-5.0.1-Linux-x86_64.sh

verify: download
    AnacondaMD5="$$(md5sum Anaconda3-5.0.1-Linux-x86_64.sh | cut -d ' ' -f1)" &&
    if [ "$$AnacondaMD5" == '$(ANACONDA_MD5)' ]; then echo "md5sum matches"; fi

$ make verify
wget https://repo.continuum.io/archive/Anaconda3-5.0.1-Linux-x86_64.sh
--2018-01-16 18:11:50--  https://repo.continuum.io/archive/Anaconda3-5.0.1-Linux-x86_64.sh
Resolving repo.continuum.io... 104.16.18.10, 104.16.19.10, 2400:cb00:2048:1::6810:130a, ...
Connecting to repo.continuum.io|104.16.18.10|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 550796553 (525M) [application/x-sh]
Saving to: `Anaconda3-5.0.1-Linux-x86_64.sh'

100%[====================================================================================================================>] 550,796,553  103M/s   in 6.8s

2018-01-16 18:11:59 (77.0 MB/s) - `Anaconda3-5.0.1-Linux-x86_64.sh' saved [550796553/550796553]

AnacondaMD5="$(md5sum Anaconda3-5.0.1-Linux-x86_64.sh | cut -d ' ' -f1)" &&
    if [ "$AnacondaMD5" == 'c989ecc8b648ab8a64731aaee9ed2e7e' ]; then echo "md5sum matches"; fi
md5sum matches

$ make --version
GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for x86_64-redhat-linux-gnu