Linux script to collect system statistics and send to your email

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This script can use to daily send the system statistics server. It will also reformat the output to replace tabs with 5 spaces so it will display nicely on your email client. 




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#!/bin/bash



 



SERVER="mydomain.com"



EMAIL_TO="your_email@gmail.com"



EMAIL_FROM="stats@mydomain.com"



 



 



# logged in users and what are they running



WHO=`w`



 



# processor stats



MPSTAT=`mpstat`



 



 



# virtual memory stats



VMSTAT=`vmstat`



 



# Top 20 memory hog applications



PS_MEM=`ps -A -o pid,pcpu,pmem,start_time,state,time,comm | perl -e '($_ = join "",<>) =~ s/(\t)/     /g; print;' |sort -g -k 3 -r | head -20`



 



 



# Top 10 CPU usage applications



PS_CPU=`ps -A -o pid,pcpu,pmem,start_time,state,time,comm | perl -e '($_ = join "",<>) =~ s/(\t)/     /g; print;' | sort -g -k 2 -r | head -10`



 



 



#  memory usage in MB



FREE=`free -m`



 



PROCINFO=`procinfo`



 



 



# iptables status



IPTABLES=`iptables -nL`



 



# established connections



NETSTAT=`netstat -na |grep -i esta |grep -v 127.0.0.1 |sort -n -t. -k2`



 



 



# line divider



DL="=================================================================================="



 



FINAL="${DL} 



`date`



${DL}



 



${SERVER} 



${DL} 



${WHO} 



${DL}



${FREE}



${DL}



${MPSTAT}



${DL}



${VMSTAT} 



 



${DL}



${PROCINFO}



${DL} 



Top 10 CPU processes



${PS_CPU} 



${DL}



Top 20 Memory processes



${PS_MEM} 



${DL}



${IPTABLES}



 



${DL}



${NETSTAT}



${DL}



"



 



echo "${FINAL}" | 



  perl -e '($_ = join "",<>) =~ s/(\t)/     /g; print;' | 



  sendEmail -f "${EMAIL_FROM}" -u "${SERVER} comparator" -t ${EMAIL_TO}

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