Useful tips for everyday
How do I move contacts between groups on iPhone? Go to “groups” in “Contacts” and uncheck all the groups except the one the contact you…
What is the meaning of a closed question? A question to which an answer must be selected from a limited set. Questionnaire items with fixed…
How do you check which TLS version is used? Instructions Launch Internet Explorer. Enter the URL you wish to check in the browser. Right-click the…
How to fix FTP permission issue in vsftpd? Even though the user has filled 777 permission. I can’t even upload files to the user’s root…
What is the use of Dconf editor? Dconf Editor is a viewer and editor of applications internal settings. It allows editing options not exposed in…
How to generate a list of filenames in Bash? From man find: -exec command {} + This variant of the -exec action runs the specified…
How to specify two field separators in AWK? How can we specify two field separators in awk command when one of them is space? I…
Is Latent Dirichlet Allocation clustering? Why use LDA? If you view the number of topics as a number of clusters and the probabilities as the…
Are time series plots used to identify outliers? Outliers in time series data are values that significantly differ from the patterns and trends of the…
What is Rethrowing an exception? If a catch block cannot handle the particular exception it has caught, you can rethrow the exception. Because the exception…