import datetime print datetime.datetime.now() print datetime.datetime.now() - datetime.timedelta(minutes=2) print datetime.datetime.now() - datetime.timedelta(seconds=10) print datetime.datetime.now() - datetime.timedelta(milliseconds=400)
el@dev ~ $ python test.py 2014-11-26 06:47:07.179411 2014-11-26 06:45:07.179538 2014-11-26 06:46:57.179581 2014-11-26 06:47:06.779614
References
http://stackoverflow.com/questions/13897246/python-time-subtraction
open /etc/network/interfaces with editor
auto eth0 #iface eth0 inet dhcp iface eth0 inet static address 192.168.56.101 netmask 255.255.255.0 gateway 192.168.56.1
and then
service networking restart
json.JSONDecoder
| JSON | Python |
|---|---|
| object | dict |
| array | list |
| string | str |
| number (int) | int |
| number (real) | float |
| true | True |
| false | False |
| null | None |
json.JSONEncoder
| Python | JSON |
|---|---|
| dict | object |
| list, tuple | array |
| str | string |
| int, float, int- & float-derived Enums | number |
| True | true |
| False | false |
| None | null |
bash script for downloading with axel
#!/bin/bash axel -a -n32 link sleep 10 axel -a -n32 link sleep 10 axel -a -n32 link sleep 10 axel -a -n32 link
#1: The “?”
#2: show running-configuration
#3: copy running-configuration startup-configuration
#4: show interface
#5: show ip interface
#6: config terminal, enable, interface, and router
example :
configure terminal interface fastEthernet 0/0 ip address 10.0.0.1 255.0.0.0 no shutdow exit
#7: no shutdown
#8: show ip route
#9: show version
#10: debug
Description :
execute a command as another user
Examples :
sudo -i
get super user shell
locations :
~/.local/share/Trash
Description :
change file owner and group
chown [owner][:[group]] file...
Examples :
sudo chown username Trash
change the owner of folder Trash to username
References
https://askubuntu.com/questions/628896/chown-difference-between-user-and-useruser