lsof -ln | grep nfs
nfsd4      3242        0  cwd       DIR        8,5      4096          2 /
nfsd4      3242        0  rtd       DIR        8,5      4096          2 /
nfsd4      3242        0  txt   unknown                                 /proc/3242/exe
nfsd       3243        0  cwd       DIR        8,5      4096          2 /
nfsd       3243        0  rtd       DIR        8,5      4096          2 /
nfsd       3243        0  txt   unknown                                 /proc/3243/exe
nfsd       3244        0  cwd       DIR        8,5      4096          2 /
nfsd       3244        0  rtd       DIR        8,5      4096          2 /
nfsd       3244        0  txt   unknown                                 /proc/3244/exe
nfsd       3245        0  cwd       DIR        8,5      4096          2 /
nfsd       3245        0  rtd       DIR        8,5      4096          2 /
nfsd       3245        0  txt   unknown                                 /proc/3245/exe
nfsd       3246        0  cwd       DIR        8,5      4096          2 /
nfsd       3246        0  rtd       DIR        8,5      4096          2 /
nfsd       3246        0  txt   unknown                                 /proc/3246/exe
nfsd      29590        0  cwd       DIR        8,5      4096          2 /
nfsd      29590        0  rtd       DIR        8,5      4096          2 /
nfsd      29590        0  txt   unknown                                 /proc/29590/exe
nfsd      29591        0  cwd       DIR        8,5      4096          2 /
nfsd      29591        0  rtd       DIR        8,5      4096          2 /
nfsd      29591        0  txt   unknown                                 /proc/29591/exe
nfsd      29592        0  cwd       DIR        8,5      4096          2 /
nfsd      29592        0  rtd       DIR        8,5      4096          2 /
nfsd      29592        0  txt   unknown                                 /proc/29592/exe
nfsd      29593        0  cwd       DIR        8,5      4096          2 /
nfsd      29593        0  rtd       DIR        8,5      4096          2 /
nfsd      29593        0  txt   unknown                                 /proc/29593/exe