Benpian will use in their daily work to some commands or tricks, right, constantly updated ...
pip source
temporary use
# pip3 install -i https://pypi.douban.com/simple/ package
Permanent modification
# vim ~/.pip/pip.conf [global] index-url = https://pypi.tuna.tsinghua.edu.cn/simple
ubuntu源
# sudo sed -i 's/us.archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list # sudo sed -i 's/mirrors.ustc.edu.cn/us.archive.ubuntu.com/g' /etc/apt/sources.list
UTC time transfer GMT
# date -d "1970-01-01 UTC `echo "$(date +%s)-$(cat /proc/uptime|cut -f 1 -d' ')+202077.293542"|bc ` seconds"
tcpdump packet capture
# sudo tcpdump -i p2p1 -w ./1.pcap host 172.16.xx.144
Vim tips
String match
:% S / string / & gn # frequency / statistical strings appear
: set ignorecase # case-insensitive (command line mode)
: the SET noignorecase # case sensitive (command line mode)
Copy and paste indent solutions disorder problem
Enter the command set paste # command line mode:
linux View Folder Size
# Du - SH the WebRTC / # du - SH * | the Sort -h # Sort by size
IP Regular
Use shell commands to extract ip address from the text:
# grep -o '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' file.txt # grep -E -o '(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)' file.txt
Take some lines in the file linux
Take file lines 200-300, the other is written to the file:
# sed -n '200,300p' 172.16-ips.txt > 100.txt
linux to windows file format conversion - newline
# sed -e 's/$/\r/' 10-vul.txt > 10-vuls.txt
Mirror cloning site
# wget -m -p -E -k -K -np -v http://www.baidu.com
Output redirection
# id 2>&1 |tee 12.txt # id 1 |tee 1.txt
OPTIONS method enabled to view the site
# curl -I -X OPTIONS http://what-site/
Vulnerability Search (NVD)
The National Vulnerability Database: https: //nvd.nist.gov/products/cpe/search
Find specific files
.Git find all files in the current directory and subdirectories
# Find ./ -name -type D ' .git ' # find # Find ./ -name -type D ' .git ' -exec RM -rf {} \; # to identify and remove
# find . -name *.wav -exec du -sh {} \; | sort -h
Single file size exceeds 100M
# find ./ -type f -size +102400k # find ./ -type f -size +102400k -exec du -sh {} \;
At the same time find a variety of file suffixes
Find suffix such as TXT | the INI | PHP file # the Find ./ -regex " * \ YUV.. " # The Find ./ -regex " * \ WAV \ |.... * \ YUV " # the Find ./ -regex " .. * \ TXT \ | * \ the INI \ | * \ PHP.... " -exec RM -rf * {} \;
The number of files in the directory Statistics
# ls -lR | grep "^-"| wc -l # webrtc-linux/src# ls -lR | grep "^-"| wc -l
pycharm delete files * .pyc
# find . -name *.pyc -exec rm -rf {} \;
markdown Insert Picture
ls output a column
# Ls -l | awk ' {print $ 9} '
Display the current existence of all user groups
# Groups # simple list # CAT / etc / Group # can see the group with which users
linux basic compilation tools
Ubuntu/Debian # apt-get install build-essential RedHat/CentOS # yum group install "Development Tools"