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2020-01-22 17:37:20 +01:00
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zsh/.oh-my-zsh/plugins/systemadmin/README.md Normal file
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# Systemadmin plugin
This plugin adds a series of aliases and functions which make a System Administrator's life easier.
To use it, add `systemadmin` to the plugins array in your zshrc file:
```zsh
plugins=(... systemadmin)
```
## Aliases
| Alias | Command | Description |
|---------|------------------------------------------------------------------------|--------------------------------------------------------------------|
| ping | `ping -c 5` | Sends only 5 ICMP Messages |
| clr | `clear; echo Currently logged in on $TTY, as $USER in directory $PWD.` | Clears the screen and prints the current user, TTY, and directory |
| path | `print -l $path` | Displays PATH with each entry on a separate line |
| mkdir | `mkdir -pv` | Automatically create parent directories and display verbose output |
| psmem | `ps -e -orss=,args= \| sort -b -k1,1n` | Display the processes using the most memory |
| psmem10 | `ps -e -orss=,args= \| sort -b -k1,1n \| head -10` | Display the top 10 processes using the most memory |
| pscpu | `ps -e -o pcpu,cpu,nice,state,cputime,args \|sort -k1 -nr` | Display the top processes using the most CPU |
| pscpu10 | `ps -e -o pcpu,cpu,nice,state,cputime,args \|sort -k1 -nr \| head -10` | Display the top 10 processes using the most CPU |
| hist10 | `print -l ${(o)history%% *} \| uniq -c \| sort -nr \| head -n 10` | Display the top 10 most used commands in the history |
## Functions
| Function | Description |
|-------------|-----------------------------------------------------------------------------------------------------------------------|
| dls | List only directories in the current directory |
| psgrep | List all processes that match the pattern input after the command |
| killit | Kills any process that matches a regular expression passed to it |
| tree | List contents of directories in a tree-like format (if tree isn't installed) |
| sortcons | Sort connections by state |
| con80 | View all 80 Port Connections |
| sortconip | On the connected IP sorted by the number of connections |
| req20 | List the top 20 requests on port 80 |
| http20 | List the top 20 connections to port 80 based on tcpdump data |
| timewait20 | List the top 20 time_wait connections |
| syn20 | List the top 20 SYN connections |
| port_pro | Output all processes according to the port number |
| accessip10 | List the top 10 accesses to the ip address in the nginx/access.log file or another log file if specified |
| visitpage20 | List the top 20 most visited files or pages in the nginx/access.log file or another log file if specified |
| consume100 | List the 100 most time-consuming Page lists (more than 60 seconds) as well as the corresponding number of occurrences |
| webtraffic | List website traffic statistics in GB from tne nginx/access.log file or another log file if specified |
| c404 | List statistics on 404 connections in the nginx/access.log file or another log file if specified |
| httpstatus | List statistics based on http status in the nginx/access.log file or another log file if specified |
| d0 | Delete 0 byte files recursively in the current directory or another if specified |
| geteip | Gather information regarding an external IP address using [icanhazip.com](https://icanhazip.com) |
| getip | Determine the local IP Address with `ip addr` or `ifconfig` |
| clrz | Clear zombie processes |
| conssec | Show number of concurrent connections per second based on ngnix/access.log file or another log file if specified |

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# ------------------------------------------------------------------------------
# Description
# -----------
#
# This is one for the system administrator, operation and maintenance.
#
# ------------------------------------------------------------------------------
# Authors
# -------
#
# * Dongweiming <ciici123@gmail.com>
#
# ------------------------------------------------------------------------------
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 $USER 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 -k1,1n'
alias psmem10='ps -e -orss=,args= | sort -b -k1,1n| head -10'
# get top process eating cpu if not work try excute : export LC_ALL='C'
alias pscpu='ps -e -o pcpu,cpu,nice,state,cputime,args|sort -k1 -nr'
alias pscpu10='ps -e -o pcpu,cpu,nice,state,cputime,args|sort -k1 -nr | head -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 -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 -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 -100
# if django website or other webiste make by no suffix language
# awk '{print $7}' "$(retlog)" |sort -n|uniq -c|sort -nr|head -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 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
}