Two `lsof` sections.

[stappersg]

There are two sections that cover the lsof command.

$ git grep  lsof
docs/lpic2.200.1.md:-   `lsof`
docs/lpic2.200.1.md:##  lsof
docs/lpic2.200.1.md:The `lsof` command is used to list information about
docs/lpic2.200.1.md:*open files* and their corresponding processes. `lsof` will handle
docs/lpic2.200.1.md:By default, lsof will show unformatted output which might be hard to
docs/lpic2.200.1.md:        $ lsof options names
docs/lpic2.200.1.md:The names argument acts as a filter here. Without options, `lsof` will
docs/lpic2.200.1.md:        $ sudo lsof /var/run/utmp
docs/lpic2.200.1.md:        $ sudo lsof +d /var/log
docs/lpic2.200.1.md:This last example causes `lsof` to search for all open instances of
docs/lpic2.205.2.md:-   `/usr/sbin/lsof`
docs/lpic2.205.2.md:###   lsof
docs/lpic2.205.2.md:The `lsof` command lists all open files on a system. Since Linux
docs/lpic2.205.2.md:Options of the `lsof` used for network troubleshooting.
docs/lpic2.205.2.md:-   Do not resolve hostnames; can make `lsof` run faster.
docs/lpic2.205.2.md:-   Do not resolve port names; can make `lsof` run faster.
docs/lpic2.205.2.md:Like `lsof`, `netstat` is a program to list open ports on a
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This issue has now reported the duplicate. How to deal with it, is yet unknown / undecided.