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Commands using tail

Commands using tail from sorted by
Terminal - Commands using tail - 209 results
netstat -pant 2> /dev/null | grep SYN_ | awk '{print $5;}' | cut -d: -f1 | sort | uniq -c | sort -n | tail -20
2009-02-16 08:49:38
User: unixmonkey982
Functions: awk cut grep netstat sort tail uniq
3
Up
Down
List top 20 IP from which TCP connection is in SYN_RECV state

List top 20 IP from which TCP connection is in SYN_RECV state.

Useful on web servers to detect a syn flood attack.

Replace SYN_ with ESTA to find established connections

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
cat -n $file | tail -n 100 && head -n number-of-lines-you-want-to-keep > newfile
2009-02-15 01:02:10
User: bbelt16ag
Functions: cat head tail
-1
Up
Down
removing those pesky malformed lines at the end of a text file..

tells you the number of lines in said file, and then tail the last 100 lines ( or how many are messed up) then u take the total amount of lines and then subract the 100 or so lines u DONT WANT, then do a head -n $new_number and then redirect it to new file.db

Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
tail -f /var/log/messages
2009-02-12 19:30:33
User: nicdev
Functions: tail
-3
Up
Down
View new log messages in real time

Use this command to see logs update in real time

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
head -1000 < lines.txt | tail -1
2009-02-08 06:41:20
User: wbx
Functions: head tail
-2
Up
Down
get line#1000 from text.
Comments (5) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
alias nsl 'netstat -f inet | grep -v CLOSE_WAIT | cut -c-6,21-94 | tail +2'
2009-02-07 18:54:12
User: mnikhil
Functions: alias cut grep tail
3
Up
Down
show all programs connected or listening on a network port

Use the aliased command 'nsl'

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
view `ls -1 access_log.* | tail -n 1`
2009-02-06 18:38:25
User: jimjmarion
Functions: tail
0
Up
Down
View latest apache access log

This command opens the latest, most current rotating apache access log for visual analysis and inspection. Run this command from the apache log directory. For error logs, replace access_log with error_log.

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
tail -f <filename> | grep -C <# of lines to show above and below> <text>
2009-02-06 17:19:01
User: manalang
Functions: grep tail
4
Up
Down
Live filter a log file using grep and show x# of lines above and below
Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
(> errors.log) && tail -f !^
2009-02-03 16:08:19
User: root
Functions: tail
2
Up
Down
Flush and then immediately start watching a file

This is useful for keeping an eye on an error log while developing. The !^ pulls the first arg from the previous command (which needs to be run in a sub-shell for this shortcut to work).

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
tail -10000 access_log | awk '{print $1}' | sort | uniq -c | sort -n | tail
2009-01-25 21:01:52
User: root
Functions: awk sort tail uniq
20
Up
Down
Analyse an Apache access log for the most common IP addresses

This uses awk to grab the IP address from each request and then sorts and summarises the top 10.

Comments (3) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate