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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2024-08-27 23:05:39 +0200 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2024-08-27 23:05:39 +0200 |
| commit | e830fa716bedecbff8c3a572d1d20061342ec4c7 (patch) | |
| tree | 03539ff9da6e494a2f652cbcd48d69d635ff8ca5 /src/monitor/lsof.md | |
| parent | f5178ed1e419cfae7679ae8b4d3130ef48abfbfd (diff) | |
| download | notes-e830fa716bedecbff8c3a572d1d20061342ec4c7.tar.gz notes-e830fa716bedecbff8c3a572d1d20061342ec4c7.zip | |
mv monitor -> process
Diffstat (limited to 'src/monitor/lsof.md')
| -rw-r--r-- | src/monitor/lsof.md | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/src/monitor/lsof.md b/src/monitor/lsof.md deleted file mode 100644 index 562c8fc..0000000 --- a/src/monitor/lsof.md +++ /dev/null @@ -1,74 +0,0 @@ -# lsof(8) - -```markdown -lsof - -r <s> ..... repeatedly execute command ervery <s> seconds - -a ......... AND slection filters instead ORing (OR: default) - -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 service names - -i <@h[:p]>. show connections to h (hostname|ip addr) with optional port p - -s <p:s> ... in conjunction with '-i' filter for protocol <p> in state <s> - -U ......... show unix domain sockets ('@' indicates abstract sock name, see unix(7)) -``` - -```markdown -file flags: - R/W/RW ..... read/write/read-write - CR ......... create - AP ......... append - TR ......... truncate -``` - -```markdown --s protocols - TCP, UDP - --s states (TCP) - CLOSED, IDLE, BOUND, LISTEN, ESTABLISHED, SYN_SENT, SYN_RCDV, ESTABLISHED, - CLOSE_WAIT, FIN_WAIT1, CLOSING, LAST_ACK, FIN_WAIT_2, TIME_WAIT - --s states (UDP) - Unbound, Idle -``` - -# Examples - -## File flags -Show open files with file flags for process: -```markdown -lsof +fg -p <pid> -``` - -## 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_). - -## Open connection to specific host -Show open connections to `localhost` for `$USER`: -```markdown -lsof -a -u $USER -i @localhost -``` - -## Open connection to specific port -Show open connections to port `:1234` for `$USER`: -```markdown -lsof -a -u $USER -i :1234 -``` - -## IPv4 TCP connections in `ESTABLISHED` state -```markdown -lsof -i 4TCP -s TCP:ESTABLISHED -``` -## List open files in a mounted directory. -This may help to find which processes keep devices busy when trying to unmount -and the device is currently busy. -```markdown -# Assuming /proc is a mount point. -lsof /proc -``` |