linux命令

[sdcuike]

• md5 CentOS-7-x86_64-Minimal-XXXX.iso
• vimtutor (start the Vim tutorial)
• vi /etc/hosts vi /etc/resolv.conf (responsible for configuring static DNS server addresses)

nameserver 8.8.8.8 nameserver 8.8.4.4

• cat /etc/passwd
• id root
• usermod -G your_new_group your_new_username
• rsync -avz --delete /path/to/source/files/ ~/sync-target
• diff -r /path/to/source/files/ ~/sync-target
• rsync --delete -avz --exclude=".zip" --exclude=".iso" /path/to/source/ /path/to/external/disk/
• openssl base64 -in abc.pdf -out encoded.txt

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dirname

http://www.computerhope.com/unix/udirname.htm http://stackoverflow.com/questions/17167769/what-does-dirname-do

deployDir=$(cd "$(dirname "$0")"; cd ..; pwd)

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http://www.ibm.com/developerworks/cn/linux/l-lpic1-map/

https://www.lifewire.com/learn-how-linux-4102755

https://www.howtoforge.com https://www.tecmint.com/category/linux-commands/