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R command for setting working directory to source file location in Rstudio
I am working out some tutorials in R. Each R code is contained in a specific folder. There are data files and other files in there. I want to open the .r file and source it such that I do not have to change the working directory in Rstudio as shown below:
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How can I get seconds since epoch in Javascript?
On Unix, I can run date '+%s' to get the amount of seconds since epoch. But I need to query that in a browser front-end, not back-end.
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Why can't I use Docker CMD multiple times to run multiple services?
I have built a base image from Dockerfile named centos+ssh. In centos+ssh's Dockerfile, I use CMD to run ssh service.
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How to change a DIV padding without affecting the width/height ?
I have a div that I want to specify a FIXED width and height for, and also a padding which can be changed without decreasing the original DIV width/height or increasing it, is there a CSS trick for that, or an alternative using padding?
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handlerbars.js check if list is empty
Is there a way in Handlebars.js templating to check if the collection or list is null or empty, before going and iterating through the list/collection?
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Bash script processing limited number of commands in parallel
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return query based on date
I have a data like this in mongodb
7 Answers
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How to check whether a file or directory exists?
I want to check the existence of file ./conf/app.ini in my Go code,
but I can't find a good way to do that.
5 Answers
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Git clone without .git directory
Is there a flag to pass to git when doing a clone, say don't clone the .git directory? If not, how about a flag to delete the .git directory after the clone?
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Install specific git commit with pip
I'm developing a django app and I'm using pip to manage my requirements. How can I do to install a specific git's commit?
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