# ------------------------------------------------------------------------------ # Description # ----------- # # This is one for the system administrator, operation and maintenance. # # ------------------------------------------------------------------------------ # Authors # ------- # # * Dongweiming # # ------------------------------------------------------------------------------ function retlog() { if [[ -z $1 ]];then echo '/var/log/nginx/access.log' else echo $1 fi } alias ping='ping -c 5' alias clr='clear; echo Currently logged in on $TTY, as $USERNAME in directory $PWD.' alias path='print -l $path' alias mkdir='mkdir -pv' # get top process eating memory alias psmem='ps -e -orss=,args= | sort -b -k1 -nr' alias psmem10='ps -e -orss=,args= | sort -b -k1 -nr | head -n 10' # get top process eating cpu if not work try execute : export LC_ALL='C' alias pscpu='ps -e -o pcpu,cpu,nice,state,cputime,args|sort -k1,1n -nr' alias pscpu10='ps -e -o pcpu,cpu,nice,state,cputime,args|sort -k1,1n -nr | head -n 10' # top10 of the history alias hist10='print -l ${(o)history%% *} | uniq -c | sort -nr | head -n 10' # directory LS dls () { print -l *(/) } psgrep() { ps aux | grep "${1:-.}" | grep -v grep } # Kills any process that matches a regexp passed to it killit() { ps aux | grep -v "grep" | grep "$@" | awk '{print $2}' | xargs sudo kill } # list contents of directories in a tree-like format if ! (( $+commands[tree] )); then tree () { find $@ -print | sed -e 's;[^/]*/;|____;g;s;____|; |;g' } fi # Sort connection state sortcons() { netstat -nat |awk '{print $6}'|sort|uniq -c|sort -rn } # View all 80 Port Connections con80() { netstat -nat|grep -i ":80"|wc -l } # On the connected IP sorted by the number of connections sortconip() { netstat -ntu | awk '{print $5}' | cut -d: -f1 | sort | uniq -c | sort -n } # top20 of Find the number of requests on 80 port req20() { netstat -anlp|grep 80|grep tcp|awk '{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -nr|head -n20 } # top20 of Using tcpdump port 80 access to view http20() { sudo tcpdump -i eth0 -tnn dst port 80 -c 1000 | awk -F"." '{print $1"."$2"."$3"."$4}' | sort | uniq -c | sort -nr |head -n 20 } # top20 of Find time_wait connection timewait20() { netstat -n|grep TIME_WAIT|awk '{print $5}'|sort|uniq -c|sort -rn|head -n20 } # top20 of Find SYN connection syn20() { netstat -an | grep SYN | awk '{print $5}' | awk -F: '{print $1}' | sort | uniq -c | sort -nr|head -n20 } # Printing process according to the port number port_pro() { netstat -ntlp | grep "${1:-.}" | awk '{print $7}' | cut -d/ -f1 } # top10 of gain access to the ip address accessip10() { awk '{counts[$(11)]+=1}; END {for(url in counts) print counts[url], url}' "$(retlog)" } # top20 of Most Visited file or page visitpage20() { awk '{print $11}' "$(retlog)"|sort|uniq -c|sort -nr|head -n 20 } # top100 of Page lists the most time-consuming (more than 60 seconds) as well as the corresponding page number of occurrences consume100() { awk '($NF > 60 && $7~/\.php/){print $7}' "$(retlog)" |sort -n|uniq -c|sort -nr|head -n 100 # if django website or other website make by no suffix language # awk '{print $7}' "$(retlog)" |sort -n|uniq -c|sort -nr|head -n 100 } # Website traffic statistics (G) webtraffic() { awk "{sum+=$10} END {print sum/1024/1024/1024}" "$(retlog)" } # Statistical connections 404 c404() { awk '($9 ~/404/)' "$(retlog)" | awk '{print $9,$7}' | sort } # Statistical http status. httpstatus() { awk '{counts[$(9)]+=1}; END {for(code in counts) print code, counts[code]}' "$(retlog)" } # Delete 0 byte file d0() { find "${1:-.}" -type f -size 0 -exec rm -rf {} \; } # gather external ip address geteip() { curl -s -S -4 https://icanhazip.com curl -s -S -6 https://icanhazip.com } # determine local IP address(es) getip() { if (( ${+commands[ip]} )); then ip addr | awk '/inet /{print $2}' | command grep -v 127.0.0.1 else ifconfig | awk '/inet /{print $2}' | command grep -v 127.0.0.1 fi } # Clear zombie processes clrz() { ps -eal | awk '{ if ($2 == "Z") {print $4}}' | kill -9 } # Second concurrent conssec() { awk '{if($9~/200|30|404/)COUNT[$4]++}END{for( a in COUNT) print a,COUNT[a]}' "$(retlog)"|sort -k 2 -nr|head -n10 }