Using Awk Print

Hi Linux Guru's

We have a running jboss7 app from our servers, I am just wondering although our dev people has a strong stop-start jboss script, we still got an output of two PID's after the start of jboss7. So we just assumed the old PID becomes on stale state but we are still not sure. May I know is there anyone encounter this same situataion? Does the "what-we-so-called stale PID" still eat memory resources of the server?


[pogi@gorgeous_server log]$ ps -ef | grep standalone
pogi 10664 6724 0 22:27 pts/1 00:00:00 grep standalone
pogi 14114 1 0 Mar10 ? 00:00:00 /bin/sh /opt/pogi/pkg/jboss-pogi/bin/standalone.sh -c=standalone.xml -b=0.0.0.0
pogi 14207 14114 99 Mar10 ? 4-21:59:53 /opt/pogi/pkg/sunjdk6_25/bin/java -D[Standalone] -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xms12G -Xmx12G -XX:MaxPermSize=256m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/pogi/log -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.server.default.config=standalone.xml -Djava.io.tmpdir=/opt/pogi/.cache -Xloggc:/opt/pogi/log/gc.log -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Dorg.jboss.boot.log.file=/opt/pogi/pkg/jboss-pogi/standalone/log/boot.log -Dlogging.configuration=file:/opt/pogi/pkg/jboss-pogi/standalone/configuration/logging.properties -jar /opt/pogi/pogi/jboss-pogi/jboss-modules.jar -mp /opt/pogi/pkg/jboss-pogi/modules -jaxpmodule javax.xml.jaxp-provider org.jboss.as.standalone -Djboss.home.dir=/opt/pogi/pkg/jboss-pogi -c=standalone.xml -b=0.0.0.0
pogi 10664 6724 0 22:27 pts/1 00:00:00 grep standalone
pogi 14344 1 0 Mar8 ? 00:00:00 /bin/sh /opt/pogi/pkg/jboss-pogi/bin/standalone.sh -c=standalone.xml -b=0.0.0.0
pogi 23421 14114 99 Mar8 ? 4-21:59:53 /opt/pogi/pkg/sunjdk6_25/bin/java -D[Standalone] -server -XX:+UseCompressedOops -XX:+TieredCompilation -Xms12G -Xmx12G -XX:MaxPermSize=256m -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=/opt/pogi/log -Djava.net.preferIPv4Stack=true -Dorg.jboss.resolver.warning=true -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djboss.modules.system.pkgs=org.jboss.byteman -Djava.awt.headless=true -Djboss.server.default.config=standalone.xml -Djava.io.tmpdir=/opt/pogi/.cache -Xloggc:/opt/pogi/log/gc.log -XX:+PrintGC -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -Dorg.jboss.boot.log.file=/opt/pogi/pkg/jboss-pogi/standalone/log/boot.log -Dlogging.configuration=file:/opt/pogi/pkg/jboss-pogi/standalone/configuration/logging.properties -jar /opt/pogi/pogi/jboss-pogi/jboss-modules.jar -mp /opt/pogi/pkg/jboss-pogi/modules -jaxpmodule javax.xml.jaxp-provider org.jboss.as.standalone -Djboss.home.dir=/opt/pogi/pkg/jboss-pogi -c=standalone.xml -b=0.0.0.0

I am using the following two commands to output CPU and RAM usage on a Linux machine.

Code:

/bin/grep 'cpu ' /proc/stat | awk '{usage=($2+$4)*100/($2+$4+$5)} END {print usage "%"}'

/usr/bin/free | grep Mem | awk '{print $3/$2 * 100.0 "%"}'

My problem is that the output is like this

Quote:
5.33672%
13.9723%
Is there a way to output a single number? For example

Quote:
5
13
Thank you

Hey guys,

Something is puzzling me!

I saw someone use the grep in the following way and I'm not sure I understand what it does, and if there's any benefit to using it this way.

Code:

grep X.X.X.X /var/log/log.log | grep -v query

I checked the man file which confirmed that -v is relating to matching non grouping lines (which I'm not sure I fully understand either!) but I don't see any difference in the output of the above command versus the same command without the | grep -v query bit..

Why would you pipe grep into grep unless you were searching for something specific within the search results?

Does query mean something else?

I want to And search grep shell

but It's hard to grep variable


---------------------------------------------------------------
#!/bin/bash


if [ $# -eq 0 ]
then
echo "Ussage: phone searchfor [...searchfor]"
echo "(You didn't tell me what you want to search for )"

else

pass=0
find=""

for idx in $*
do
if [ -n "$idx" ]
then
if [ $pass -eq 0 ]
then
find=$(egrep "$idx" mydata)
pass=1

else

find=$("$find" | grep "$idx")

echo $find
fi
fi

done

if [ -z "$find" ]
then
echo "There is no such thing"
else

echo $find | awk -f display.awk

fi

fi

-----------------------------------------------------

there is one error : command not found

in find=$("$find" | grep "$idx")

how can I grep variable and store it into variable?

Hi All,

Using grep command with a defined string, you will get the row. Can I get the column instead of row? For example,

the file content is as below:

AA BB
123 456
789 ABE

execute 'grep ABE file' will give you "789 ABE". Is there any way to get the column:
BB
456
ABE
?

Thank you very much.

Hi,

I am running awk command on remote server it is not giving desired results but if i run the same command on local server. it works as expected. Can anybody help me to resolve this and let me know the logic behind this?

Remote server

# ssh test 'free -g | grep Mem | awk -F " " '{ print $2 }''
awk: cmd. line:1: {
awk: cmd. line:1: ^ unexpected newline or end of string

local server
# free -g | grep Mem | awk -F " " '{ print $2 }'
31


Thanks in advance.

hello,

i am trying to make a table from some files. i used this to record how much "RD_" field i have in my file. Quote:
grep -o 'RD_' $f|grep -c 'RD_'
forexample i got 5 "RD_" fields now i want to print 5 number of fields from another file starting from 2nd field. i did it mannully like Quote:
awk 'NR==1{print"{"$2","$3","$4","$5","$6","0.0000",""0.0000""}"","}' $file
i want to make it work together and a bit auto matic like PHP Code:
awk 'NR==1{print"{"$2"to "$5"," apend zeros to make it total 7 fields"}"","}' $file 


your coments would be apreciated
thanks alot

in my RHEL 4 server , I want to know what ftp server is running but can't find it.

I tried "ps -ef |grep ftp" but no output , chkconfig --list |grep ftp also no output related to ftp , /etc/rc.d/init.d can't find ftp service , ftp localhost is not allow .

when use FileZilla to connect it , it is ok , the ftp should be running , I tried to use "ps -ef |grep ftp" , it pops the following output , would advise what ftp server is running in server ? thanks

Code:

edp 11027 11026  0 12:39 ?        00:00:00 tcsh -c /usr/libexec/openssh/sftp-server
edp 11037 11027  0 12:39 ?        00:00:00 /usr/libexec/openssh/sftp-server
user   11050  7747  0 12:48 pts/2    00:00:00 grep ftp

I've been using this a lot:

find <directory to start search at> -name "<files to search in>" -type f | xargs grep "<string to search for>"

e.g.

find /usr/include -name "*.h" -type f | xargs grep "#define UINT"

now what if I wanted to output the results to a file?

I need to execute this .bashrc string:

alias lml='grep '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' mail.log | grep "relay=" | awk '{print $8}'' #list mail log

I have tried enclosing the string in alias as lml="..." and alias lml=`...` to no avail. The problem is apparently with the grep "relay=" in that it has to be enclosed in "", as well as the awk that has to be enclosed in ''.

Any ideas on how to get this setup? Thanks.