[kevshaw@451]$ history
     1  mkdir md
     2  cd md
     3  wget http://mackerell.umaryland.edu/download.php?filename=CHARMM_ff_params_files/charmm36-jul2020.ff.tgz
     4  ls
     5  mv download.php\?filename\=CHARMM_ff_params_files/charmm36-jul2020.ff.tgz charmm36.tgz
     6  ls
     7  less charmm36.tgz
     8  tar xvfz charmm36.tgz
     9  ls
    10  cd charmm36-jul2020.ff/
    11  ls
    12  ls -al
    13  less .charm36.tgz
    14  less ./charm36.tgz
    15  less ../charmm36.tgz
    16  ls
    17  less atomtypes.atp
    18  less ffbonded.itp
    19  cd
    20  ls
    21  cd md
    22  ls
    23  rm charmm36.tgz
    24  ls
    25  tar cvf charmm36-jul2020.ff/ charm36.tar
    26  tar cvf charmm36.tar charmm36-jul2020.ff/
    27  ls
    28  gzip -v charmm36.tar
    29  wget http://ftp.gromacs.org/pub/gromacs/gromacs-2021-beta1.tar.gz
    30  ls
    31  ls -l
    32  md5sum gromacs-2021-beta1.tar.gz
    33  cd
[kevshaw@451]$