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Culture, IT, Trend, Travel , Experience korea travel & culture
2019. 9. 30.
remove leading zero in bash
remove leading zero in bash
leading=“000100”
no_leading=$((10#$leading))
## no_leading —> 100
September 30, 2019 at 11:03AM
2019. 9. 19.
find by size
find by size
find ./ -type file -size +500M
option:
b - 512 block
c - byte
w - two bytes words
k - kilo
M - mega
G - giga
# find and display size. human readable
find ./ -type file -size +500M -exec ls -lh {} \;
September 19, 2019 at 02:22PM
2019. 9. 15.
UFW config ( ubuntu firewall config )
firewall config
## install
sudo apt-get install ufw
## add port
sudo ufw allow 22
sudo ufw allow 8081
sudo ufw allow 8082
## enable ufw
sudo ufw enable
## check status
sudo ufw status
## delete allow port
Sudo ufw delete allow 2022 # 2022 allow를 삭제함.
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