-c c This option selects the listing of files for processes executing the command that begins with
the characters of c. Multiple commands may be specified, using multiple -c options. They are
joined in a single ORed set before participating in AND option selection.
If c begins with a '^', then the following characters specify a command name whose processes are
to be ignored (excluded.)
If c begins and ends with a slash ('/'), the characters between the slashes are interpreted as a
regular expression. Shell meta-characters in the regular expression must be quoted to prevent
their interpretation by the shell. The closing slash may be followed by these modifiers:
b the regular expression is a basic one.
i ignore the case of letters.
x the regular expression is an extended one
See the lsof FAQ (The FAQ section gives its location.) for more information on basic and
extended regular expressions.
The simple command specification is tested first. If that test fails, the command regular
expression is applied. If the simple command test succeeds, the command regular expression test
isn't made. This may result in ``no command found for regex:'' messages when lsof's -V option
-u s This option selects the listing of files for the user whose login names or user ID numbers are
in the comma-separated set s - e.g., ``abe'', or ``548,root''. (There should be no spaces in
Multiple login names or user ID numbers are joined in a single ORed set before participating in
AND option selection.
If a login name or user ID is preceded by a `^', it becomes a negation - i.e., files of
processes owned by the login name or user ID will never be listed. A negated login name or user
ID selection is neither ANDed nor ORed with other selections; it is applied before all other
selections and absolutely excludes the listing of the files of the process. For example, to
direct lsof to exclude the listing of files belonging to root processes, specify ``-u^root'' or