updated lsof

1 files changed, 10 insertions, 6 deletions

diff --git a/src/lsof.md b/src/lsof.md
index a7ed2d1..8253003 100644
--- a/src/lsof.md
+++ b/src/lsof.md
@@ -3,10 +3,10 @@
 ```markdown
 lsof
   -a ......... AND slection filters instead ORing (OR: default)
-  -p <pid> ... list open file descriptors for process
+  -p <pid> ... filter by <pid>
   +fg ........ show file flags for file descripros
   -n ......... don't convert network addr to hostnames
-  -P ......... don't convert network port to know service names
+  -P ......... don't convert network port to service names
   -i <@h[:p]>. show connections to h (hostname|ip addr) with optional port p
 ```
 
@@ -20,17 +20,21 @@ file flags:
 
 # Examples
 
-Show open files with file flags:
+## File flags
+Show open files with file flags for process:
 ```markdown
 lsof +fg -p <pid>
 ```
-
-Show open tcp connections from user:
+## Open TCP connections
+Show open tcp connections for `$USER`:
 ```markdown
 lsof -a -u $USER -i tcp
 ```
+**Note**: `-a` _ands_ the results. If `-a` is not given all open files matching
+`$USER` and all tcp connections are listed (_ored_).
 
-Show open connections to 'localhost' for user:
+## Open connection to specific host
+Show open connections to `localhost` for `$USER`:
 ```markdown
 lsof -a -u $USER -i @localhost
 ```