If the two directories are on the same machine,
you can use either colordiff (preferred over diff) or git diff
to find the differences between them.
colordiff -qr dir_1 dir_2
git diff --no-index dir_1 dir_2
It is a little bit tricky when the …
You can list files sorted by time (newest first) using the -t option.
Notice that the -t option is also support by hdfs dfs -ls.
ls -lht
You have to either enclose the pattern in quotes or escape the wildcard in patterns.
Equivalent …
You can setup proxy in a terminal by export environment variables http_proxy and `https_proxy'.
export http_proxy='proxy_server:port'
export https_proxy='proxy_server:port'
However,
you might find the exported environment variables are not visible to sudo.
This can be resovled by simplying adding the -E (preserve environment) option to sudo.
sudo …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 …