Solaris

Your system may have GNU utilities ( lsof is one) somewhere special.
Try the command:

Code:

which gawk

This will probably fail because your PATH variable is wrong.
So then try

Code:

find /usr -type f -name lsof

Example output might be:

Code:

/usr/sfw/bin/gawk

gawk is a GNU version of awk for Solaris - pick something else if you know one. like ggrep ...

Following this example then you would use this command:

Code:

ls -l  /usr/sfw/bin/gawk

Do you know where GNU coreutils and friends are on your Solaris system? lsof is in there.

Note that lsof is not part of the GNU utilities, it is not even distributed under the GPL.

It is also very specific in the sense it uses undocumented and somewhat hackish methods to access private kernel structures. For this reason, it needs to be adapted each time these structures evolve and older binaries refuse to work on newer kernels.

To avoid such issues, it is recommended to use the bundled pfiles, netstat, and other supported utilities.