Linux command #linuxcommand

List of Linux command

To list the file : 

ls -lrt

ls -lrt .xml* - list the file ending with .xml

To move to directory : 

cd directorty name

To move the file : 

mv originalfile newfilename

To copy data of one file to another :

 cp file1 file2 [data of file1 will be copied to file2]

To remove file :

rm filename

To remove file recursivley (forcefully) :

rm -rf filename

To create directory : 

mkdir directoryname

To give permission to directory : 

chmod -R 775 directoryname

To compare two jar : 

    If server OS is Linux : md5sum jarname

    If server OS is AIX  : cusm -h MD5 jarname

To check if port is in listen mode on server : 

netstat -an|grep portname [eg. portname - 8182]

netstat -anc|grep portname

To check how many services are running on server : 

ps -ef|grep java

Oracle weblogic server command - 

To start the weblogic : 

    nohup ./startWeblogic.sh &

    nohup ./startNodemanager &

To stop the weblogic : 

    nohup ./stopNodemanager.sh

    nohup ./stopWeblogic.sh

To check if services started or not : tail -f nohup.out

To search log or any file in server

If file format is .gz use zgrep else use grep

zgrep "" fileformat*

grep "" fileformat*

grep "" *

To open file :

you can use cat , vi , less , zmore , more

cat filename

To search inside file press /enterword that you want to search and press N to go next line , press U to move to previous line

/ - used to search from starting of the file

? - used to search from last of the file [press G to go the end of the file]

To refresh the log : press :e! then do enter

To create file :  vi filename

To save the file :  :wq!

To close the file :   :q!

To get the status of any URL connectivity in server :

wget urlname

To check space availability in server :

If OS is AIX : df -g  or  df

If OS is Linux : df  -h  or  df

To check which directory is taking how much space : 

du -a/*

To start and stop the services on server : 

start : sh ./bin/run.sh

stop : sh ./bin/shut.sh

To tar and untar file : 

tar : tar -xvf filename.tar 

untar : tar -cvf filename.tar filename2/[filename2 - where we want to untar]

To copy file from one directory to another : 

cp 'filename' ../  [filename will get copied to one directory back]