Here is a good article on Git Behind a Proxy or Firewall.
If you do not already know the proxy in use (in your office), read the post Find out Proxy in Use to figure the proxy (in your office).
Run the following commands in terminal or Windows command prompt …
There are many interesting while at the same time very tricky problems in statistics. One famous question is that how many steps (expected) does it take to observe a given sequence (e.g. THTH, TTHH), if we flip a balanced coin?
This problem can be solved using (delay) renewal theory …
My first choice is pandas in Python. However, below are some tools for quick and dirty solutions.
q -t -H 'select c1, c3 from file.txt'
cut -d\t -f1,3 file.txt
awk -F'\t' '{print $1 "\t" $3}' file.tsv
Note: neither cut …
NOTE: the article talks about sampling "lines" rather than "records".
If a records can occupy multiple lines,
e.g., if any field contains a new line (\n),
the following tutorial does not work
and you have to fall back to more powerful tools such as Python or R.
Let's say …
** Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement! **
Both adduser and useradd can be used to create a new user.
adduser is interactive while useradd is non-interactive.
It is suggested that you use useradd in batch …
Get information of the staff group.
$ getent group staff
staff:x:20:
Get group ID of the staff group.
$ getent group staff | cut -d: -f3
20
Get information of the staff group.
$ dscl . -read /Groups/staff
Get group ID of the staff group.
$ dscl . -read /Groups/staff | awk …