[kevshaw@451]$ history
     1  date
     2  man gfp
     3  cd pdb
     4  ls
     5  rm *.pdb
     6  ls
     7  head -20 2017-11-18.pdbsel
     8  cat 2017-11-18.pdbsel | cut -c9-12 | less
     9  cat 2017-11-18.pdbsel | cut -c9-12 | head -10 | gfp -f
    10  ls
    11  cat 2017-11-18.pdbsel | cu
    12  ls
    13  cat 2017-11-18.pdbsel | cut -c9-12 | head -20
    14  cat 2017-11-18.pdbsel | cut -c9-12 | head -25 | xargs -l gfp -f
    15  ls
    16  ls *.pdb | wc -l
    17  cat /proc/cpuinfo
    18  rm *.pdb
    19  less 2017-11-18.pdbsel
    20  grep ' X ' 2017-11-18.pdbsel | less
    21  grep ' X ' 2017-11-18.pdbsel | wc -l
    22  grep ' X ' 2017-11-18.pdbsel | less
    23  grep ' X ' 2017-11-18.pdbsel | cut -c22-25
    24  grep ' X ' 2017-11-18.pdbsel | cut -c22-25 | less
    25  grep ' X ' 2017-11-18.pdbsel | cut -c22-25 | sort -n | less
    26  ls
    27  head -20 2017-11-18.pdbsel
    28  ls
    29  less pdb9rnt.ent
    30  grep ^HETATM
    31  grep ^HETATM pdb9rnt.ent
    32  grep ^HETATM pdb9rnt.ent | less
    33  grep ^HETATM.*CA pdb9rnt.ent
    34  grep '^HETATM.*CA ' pdb9rnt.ent
    35  grep '^HETATM.*CA ' pdb9rnt.ent
    36  grep CA$ pdb9rnt.ent
    37  grep 'CA $' pdb9rnt.ent
    38  grep 'CA $' pdb9rnt.ent
    39  cd
[kevshaw@451]$