Suppose you come across the following command in a script. You are not quite sure what it does. Specifically, you want to know the meaning of each command argument.
$ wget --spider -r -nd -nv -H -l 1 -w 2 -o test.log http://example.com/ Traditionally, to find out what each argument does, you look up the
man page for the
wget command. Then, you scroll through page after page of information, and extract the description for each argument. This is a time-consuming, and eye-straining exercise.
The glob module finds all the pathnames matching a specific pattern according to the rules used by the Unix Shell. No tilde expansion is done, but *, ?, and character ranges expressed with  will be correctly matched.
To list all files ending with *.txt in /home/guest directory:
>>> import glob
[‘/home/guest/syslog.txt’, ‘/home/guest/mysql.txt’, ‘/home/guest/topics.txt’, ‘/home/guest/bus.txt’]
Dropbox gives you up to 16GB free. Google Drive & Gmail give you 15GB.OneDrive gives you 15GB.Box gives you 10GB.
Many customers these days are implementing Oracle on XtremIO so they benefit from excellent, predictable performance and other benefits such as inline compression and deduplication, snapshots, ease of use etc.
Due to the Ghost bug aka CVE-2015-0235, we had to upgrade 500+ system vm’s. We’re running CloudStack 4.4.2. The version of the systemvm template it uses was 4.4.1 and so we created 4.4.2 and used that instead.
To download a url with basic authentication we need to pass username & password.
To acheive this functionality with wget or curl observer following examples:
$ curl -u 'username:password' 'http://www.example.com'
$ wget --user='username' --password='password' 'http://www.example.com'
Wget with cookie:
By using slicing technique we can remove first ans last character from a string.
Observe following example for more details:
>>> input = "abcd"
In above example I removed a and d from input string (‘abcd’) with input[1:-1], so out our output is ‘bc’.
I’ve been working out a minor idea involving the control of some household actions based on local time, but relative to sunrise and sunset rather than a naive time of day. Simon Kennedy’s Astral is a Python module that can compute these times, but its examples focus on retrieval of locations from major cities. Most places aren’t major cities in the module’s list, so I spent a little time to read the source to determine what other entry points were enabled.
Debian comes with over 37,500 packages in its default distribution. Yet, occasionally, we still need to install a package which has not made it into the default distribution. If your current system already has all the prerequisite packages installed, then life is good. You simply download the deb file, and install it with the
$ sudo apt-get update $ sudo dpkg -i somelocal.deb