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*******************************************************************************************Step by Step Implementation of key based authentications from Source A to Destination B. ******************************************************************************************* (1) At source A (1-A) Generate a Key ssh-keygen -t dsa Above command creates a public key file called : id_dsa.pub and private key called id_dsa (1-B) Cat id_dsa.pub to the destination B and save as a file called authorized_keys…

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Following command gives, all files that are modified in last 4 days. find /IOTTOARCH/*.arc -mtime -4 -exec ls -rlt {} ; Following command gives, all files that are modified before last 4 days. find /IOTTOARCH/*.arc -mtime +4 -exec ls -rlt {} ;

For Example, Db size : 461 GB. On SAN EMC FC4700

grep -v “^$” filename > newfilename

* To Print System Configuration /usr/sbin/prtconf Above command is useful to view Memory available to this system as following. /usr/sbin/prtconf | grep “Memory size” You can also use “top” command to see total RAM and swap info. * To see Available Processor Info. (Processor Info). psrinfo