Monitor Applications application that are connected/new connections

while true; do netstat -p |grep "tcp"|grep --color=always "/[a-z]*";sleep 1;done
The -p parameter tell the netstat to display the PID and name of the program to which each socket belongs or in digestible terms list the program using the net.Hope you know what pipe symbol means! Presently we wish to only moniter tcp connections so we ask grep to scan for string tcp, now from the op of grep tcp we further scan for regular expression /[a-z]*. Wonder what that means ? If we look at the op of netstat -p we can see that the name of the application is preceded by a / ( try netstat -p ) so,now i assume application name contains only characters a to z (usually this is the case) hope now it makes some sense.Regular expression /[a-z]* means to scan a string that start with a / and contains zero or more characters from the range a-z !!. Foof .. is t
Sample Output
tcp        0      0 x.x.x.x:49013      tx-in-f191.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:53838      hk-in-f83.google.:https ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:37727      72.14.203.106:http      ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:35615      hk-in-f19.google.:https ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:52213      tx-in-f103.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:38914      tx-in-f133.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:45856      tx-in-f99.google.c:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:37726      72.14.203.106:http      ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:45863      tx-in-f99.google.c:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:45862      tx-in-f99.google.c:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:44211      ag-in-f12:jabber-client ESTABLISHED 4351/pidgin     
tcp        0      0 x.x.x.x:45861      tx-in-f99.google.c:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:37725      72.14.203.106:http      ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:44212      ag-in-f12:jabber-client ESTABLISHED 4351/pidgin     
tcp        0      0 x.x.x.x:52210      tx-in-f103.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:37718      tx-in-f101.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:52212      tx-in-f103.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:52211      tx-in-f103.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:52209      tx-in-f103.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:36595      72.14.203.138:http      ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:52377      hk-in-f104.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:41747      calvino.freenode.n:ircd ESTABLISHED 4406/irssi      
tcp        0      0 x.x.x.x:49014      tx-in-f191.google.:http ESTABLISHED 3156/firefox-bin
tcp        0      0 x.x.x.x:45857      tx-in-f99.google.c:http ESTABLISHED 3156/firefox-bin

-4
By: buffer
2009-07-16 04:52:49

What Others Think

use netstat -tp and you can drop the |grep "tcp". oh and this is not a command to use on a box running bittorrent. the hostname lookups for a few hundred hosts would cause the netstat part to take far too long to be useful.
TheMightyBuzzard · 774 weeks and 3 days ago
remove the loop and use (in addition to themightybuzzard's suggestion): watch -n 1 "command"
linuxrawkstar · 774 weeks and 3 days ago
use $ while sleep 1; do ..; done and $ netstat -pt
ioggstream · 774 weeks and 3 days ago
watch -n1 'netstat -anpt' is a way shorter, doesn't try to resolve hostnames
unixmonkey4704 · 774 weeks and 2 days ago
Pug Puppies for Sale Near Me pugs puppies for sale teacup pugs for sale pug puppies for sale by owner pug puppies ohio PUG PUPPY FOR SALE NEAR ME PUG PUPPIES FOR SALE pug puppies for sale in kentucky Pug Puppies for Sale Under $500 Near Me pug puppies for sale in texas pug puppies for sale $200 pugs for sale near me under $500 pugs for sale under $400 near me pugs for sale near me puppies for sale near me under $500 pug puppies for sale under $1,000 near me pug for sale pug puppies for sale under $300 Brindle Pug Pitbull Pug Mix Pugs for sale cheap Cheap pug affordable pug puppies for sale near me black pugs for sale near me White Pugs for sale pug dog for sale free pug puppies pug puppies for sale in my area mn pug breeders pug puppies indiana pugs for sale michigan PUG PUPPY ADOPTION Pug puppies for sale Pug puppies for sale near me Pug puppies near me Pug Puppies for Sale Under $500 Near Me Cute Pug Puppies Black pug puppies Black pug puppies for sale pug puppies for adoption black pug puppies for sale near me chihuahua pug mix puppies how much is a pug puppy teacup pug puppies baby pug puppies pictures of pug puppies pug puppies for sale in Ohio pug puppies price pug mix puppies teacup pug puppies for sale best food for pug puppy newborn pug puppies pug puppies craigslist pug puppies for sale craigslist adorable pug puppies how much does a pug puppy cost Pitbull pug mix puppies pug pit mix puppy pug puppies for sale $200 pug puppies for sale in NJ Pug puppies for sale in Wisconsin pug puppy cost pug puppy food royal canin pug puppy royal canin pug puppy food fawn pug puppy pug puppies for sale florida pug puppies for sale in Indiana pug puppies for sale in KY pug puppies for sale in NC pug dog puppy AKC Registered Pug Puppies For sale cheap pug puppies for sale near me cheap pug puppies for sale in California cheap pug puppies for sale in nj Black Pug Puppies for sale pugs puppies for sale pug puppies indiana Amazing! This blog looks just like my old one! It's on a completely different subject but it has pretty much the same layout and design. Wonderful choice of colors!
rahimhh21 · 88 weeks and 6 days ago
Since 2008, Perfect House Pug Puppies has been the leading Pug puppy breeder in the US, providing premium Pug puppies for sale. Each puppy exhibits the professionalism and knowledge that have set Perfect House Pug puppies apart from other pug puppy breeders. The professionals at Perfect House Pug Puppies are dedicated about finding their puppies loving, beloved homes where they can enjoy long, healthy lives. A companion that has been produced for quality, health, and temperament that satisfies the breed standard is guaranteed by Perfect House Pug puppies, the pug breeder that has set the benchmark for exceptional customer satisfaction. If you are looking to buy a baby pug, Black and white pugs, Mini pug puppies for sale, Black and tan pug for sale, Teacup pug puppies for sale, Female pug puppies, pug puppies for sale, pug puppies for sale near me, pug puppies for sale under $500 near me. Pug Puppies for Sale Near Me pugs puppies for sale teacup pugs for sale pug puppies for sale by owner pug puppies ohio PUG PUPPY FOR SALE NEAR ME PUG PUPPIES FOR SALE pug puppies for sale in kentucky Pug Puppies for Sale Under $500 Near Me pug puppies for sale in texas pug puppies for sale $200 pugs for sale near me under $500 pugs for sale under $400 near me pugs for sale near me puppies for sale near me under $500 pug puppies for sale under $1,000 near me pug for sale pug puppies for sale under $300 Brindle Pug Pitbull Pug Mix Pugs for sale cheap Cheap pug affordable pug puppies for sale near me black pugs for sale near me White Pugs for sale pug dog for sale free pug puppies pug puppies for sale in my area mn pug breeders pug puppies indiana pugs for sale michigan PUG PUPPY ADOPTION Pug puppies for sale Pug puppies for sale near me Pug puppies near me Pug Puppies for Sale Under $500 Near Me Cute Pug Puppies Black pug puppies Black pug puppies for sale pug puppies for adoption black pug puppies for sale near me chihuahua pug mix puppies how much is a pug puppy teacup pug puppies baby pug puppies baby pug puppies for sale pictures of pug puppies pug puppies for sale in Ohio pug puppies price pug mix puppies teacup pug puppies for sale best food for pug puppy newborn pug puppies pug puppies craigslist pug puppies for sale craigslist adorable pug puppies how much does a pug puppy cost Pitbull pug mix puppies pug pit mix puppy pug puppies for sale $200 pug puppies for sale in NJ Pug puppies for sale in Wisconsin pug puppy cost pug puppy food royal canin pug puppy royal canin pug puppy food fawn pug puppy pug puppies for sale florida pug puppies for sale in Indiana pug puppies for sale in KY pug puppies for sale in NC pug dog puppy AKC Registered Pug Puppies For sale cheap pug puppies for sale near me cheap pug puppies for sale in California cheap pug puppies for sale in nj Black Pug Puppies for sale pugs puppies for sale
Perfecthomepugs · 80 weeks and 5 days ago
EVERYONE in the family Priority number one. We're small-scale, in-home breeders. We're not a facility or a kennel; we're a group of Pug enthusiasts who are utterly smitten with our adorable kids. Perfect House of Pugs is just breathtaking! Our Pugs have the best temperaments and personalities. They are created specifically for families looking for a high-quality Pug puppy. With over 18+ years, we have fought for only the finest standards, with our Pugs' health as our primary emphasis, which is why we put EVERYTHING into it, never cutting corners, always changing, and always improving. Our children are our greatest source of pride and delight. Our mission is to build connections (rather than merely sell puppies) and to bring pleasure and joy into your household. We are raising a Pug family and are certain that these puppies will become an integral part of your life. PLEASE VISIT OUR WEBSITE LINK BELLOW FOR MORE INFORMATION ABOUT PUG PUPPIES. PUG PUPPY ADOPTION Pug puppies for sale PUG PUPPIES FOR SALE NEAR ME PUG PUPPIES NEAR ME PUG PUPPIES FOR SALE UNDER 500 NEAR ME CUTE PUG PUPPIES BLACK PUG PUPPIES BLACK PUG PUPPIES FOR SALE PUG PUPPIES FOR ADOPTION BLACK PUG PUPPIES FOR SALE NEAR ME CHIHUAHUA PUG MIX PUPPIES TEACUP PUG PUPPIES HOW MUCH IS A PUG PUPPY BABY PUG PUPPIES PICTURES OF PUG PUPPIES PUG PUPPIES FOR SALE IN OHIO PUG PUPPIES FOR SALE IN PA PUG PUPPIES PRICE PUG MIX PUPPIES TEACUP PUG PUPPIES FOR SALE BABY PUG PUPPIES FOR SALE BEST FOOD FOR PUG PUPPY NEWBORN PUG PUPPIES PUG PUPPIES CRAIGSLIST PUG PUPPIES FOR SALE CRAIGSLIST WHITE PUG PUPPIES PUG PUPPIES FOR SALE IN MICHIGAN PUG PUPPIES FOR SALE UNDER 500 ADORABLE PUG PUPPIES BRINDLE PUG PUPPY HOW MUCH DOES A PUG PUPPY COST PITBULL PUG MIX PUPPIES PUGS FOR SALE NEAR ME PUG PUPPIES FOR SALE 200 PUG PUPPIES FOR SALE IN NJ PUG PUPPIES FOR SALE IN WISCONSIN PUG PUPPIES MICHIGAN PUG PUPPY COST MERLE PUG PUPPY FOR ADOPTION BEST PUG PUPPY FOOD ROYAL CANIN PUG PUPPY FOOD FAWN PUG PUPPY PUG PUPPIES FOR SALE FLORIDA PUG PUPPIES FOR SALE IN INDIANA PUG PUPPIES FOR SALE IN KY PUG PUPPIES FOR SALE IN NC PUG PUPPIES FOR SALE IN TEXAS PUG PUPPIES FOR SALE MN PUG DOG PUPPY AKC REGISTERED PUG PUPPIES FOR SALE PUG ALL BLACK CHEAP PUG PUPPIES FOR SALE NEAR ME PUGS PUPPIES FOR SALE CHEAP PUG PUPPIES FOR SALE IN CALIFORNIA MINIATURE PUG PUPPIES FOR SALE NEAR ME MINIATURE PUG PUPPIES FOR SALE CHEAP PUG PUPPIES FOR SALE IN NJ KNOWN FACTS ABOUT PUG PUPPIES ADOPT PUG PUPPIS RESCUE A PUG PUPPY PERFECT HOUSE OF PUGS PUG PUPPIES INSTAGRAM PINTEREST QUORA Google Page USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA USA
pugpuppies95 · 42 weeks and 5 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

You must be signed in to comment.

What's this?

commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

Share Your Commands



Stay in the loop…

Follow the Tweets.

Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.

» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10

Subscribe to the feeds.

Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):

Subscribe to the feed for: