In WeBots and using programs with ROS2 you need to use world files with the .wbt extensions.
Does someone know how to comment one line or multiple lines ?
Thanks.
Yes, you can use the # character in front of a line to comment it, like in Python.
Related
I am wondering if it is possible to accomplish the following, given some context and example.
I have files in "Server\Share\Folder\File##.ext"
Sometimes the "File##.ext" can be "File01.ext" through "File20.ext", and other times it may be "File01.ext" through "File40.ext"
Sometimes there are less of these files, sometimes there are more.
I want a batch file to take the files from "Server\Share\Folder\File##.ext" and move them to "Server\Share\OtherFolder\File##.ext". I know I can accomplish this easily with:
copy /y "Server\Share\Folder\File01.ext" "Server\Share\OtherFolder\File01.ext"
Then just add another line for each extra "File02.ext, File03.ext, etc., but I am wondering if it is possible to make it so that any file that resembles "File##.ext" can be included, so that no matter how many ## I have, it always works without issue.
Thanks in advance for any and all advice!
EDIT
Someone mentioned using Wildcards, but my question with that is - lets say those files are File01.ext through File05.ext, will it match what it finds to the newly moved file? Like will it find File01 from File?? on the source and Make it File01 from File?? at the destination?
You can accomplish this task with a FORloop program in batch-file.
You can also loop through the Commands using : and variable name.
Combining these two would help you get what you want.
We can help you with Ideas and little bit of the coding. But the Efforts must be done by you. So U can learn programming better
I'm using Windows and Notepad++ to separate file in txt. I have 2 files which is I have to merge it side by side or line by line for my data analysis.
Here is the example:
file1.txt
Abcdefghijk
abcdefghijk
file2.txt
123456
123456
then the output I want is like this:
Abcdefghijk123456
abcdefghijk123456
in the next file or output file. Does anybody here know how to do this?
Your question answered here by TheMadTechnician. Using powershell, you should take both source files (1 and 2) as arrays of lines. Then comes simple cycle, like "merge line x from file1 with line x from file2 as long you have some lines in file1".
Unfortunately its impossible with pure cmd.
#riki.. you could also write a batch program to do this pro grammatically. There should probably be no limit over the number of lines.
It may depend on the number of lines you're having in each files. I suggest to copy paste the same if it is less than 50 lines.
Otherwise,
use some powerful languages like python, c,php etc. And make it run before performing data analysis.
There is a free utility you can download and run on your computer, called txtcollector. I read about it here. I used it because I had a whole folder of files to concatenate. It was a breeze. The only slight imperfection I noticed was that I couldn't paste in the path to the specific folder in the first step (choosing the folder where the files to be concatenated were). However, I could do this when choosing where to save the result.
I was wondering if it is possible to write a comment on the .htpasswd file.
Why ? Because sometimes, we have to "disable" some users, just for a couple of days. I checked on StackOverflow and other websites, and it seems pretty confusing :
Not possible
Possible with ::
Possible with # (like .htaccess)
::bar:$apr1$G3iw8iqc$IGNoXDw7e7HolcSgE/V0a0
#foo:$apr1$3dJLDmbn$/zODUbSXmqDfeeCmMFKO8/
NB: I don't want to disable users by adding a fake char at the beginning of the line, for instance. I want a clean way, if this is possible ;)
After testing, both seems to work, but I want some expert opinions (and btw VIm doesn't syntax highlight neither :: nor #)
Apache's config file format (of which .htaccess files are one example) doesn't technically support inline comments, only full-line comments (i.e. a line beginning with a #).
Lines that begin with the hash character "#" are considered comments, and are ignored. Comments may not be included on a line after a configuration directive. -- Official Apache 2.4 manual
As far as I know, the syntax of these files is the same as other Apache configuration files. Apache does not document this specifically for .htpasswd, but says generically that comments can be added to their config files by using #. Comments can only span one line. Directives must be on one line, but can span multiple lines when appended with \ at the end of the line.
I have a large source code where most of the documentation and source code comments are in english. But one of the minor contributors wrote comments in a different language, spread in various places.
Is there a simple trick that will let me find them ? I imagine first a way to extract all comments from the code and generate a single text file (with possible source file / line number info), then pipe this through some language detection app.
If that matters, I'm on Linux and the current compiler on this project is CLang.
The only thing that comes to mind is to go through all of the code manually and check it yourself. If it's a similar language, that doesn't contain foreign letters, consider using something with a spellchecker. This way, the text that isn't recognized will get underlined, and easy to spot.
Other than that, I don't see an easy way to go through with this.
You could make a program, that reads the files and only prints the comments out to another output file, where you then spell check that file, but this would seem to be a waste of time, as you would easily be able to spot the comments yourself.
If you do make a program for that, however, keep in mind that there are three things to check for:
If comment starts with /*, make sure it stops reading when encountering */
If comment starts with //, only read one line - unless:
If line starting with // ends with \, read next line as well
While it is possible to detect a language from a string automatically, you need way more words than fit in a usual comment to do so.
Solution: Use your own eyes and your own brain...
My standard mode of working in Python is to edit a text file while having IPython open in a terminal. I write functions one line at a time and paste them one at a time into IPython. When a line is wrong i correct it in the text editor and then re-paste it.
This used to work well but recent versions of IPython won't accept indented code. One suggested solution is to use the qt terminal, but often I am logged in over an ssh session. Another suggested solution is to use %cpaste but that's two much overhead if you paste one line of indented code at a time (%cpaste at the beginning and -- at the end; 2 lines of overhead per line of code). What I currently do is unindent every block in my text editor before i start working on it, but that's a pain too. Any other ideas? What would be great is if there's a way to put IPython permanently into %cpaste mode, or whatever part of that mode makes it disregard leading whitespace.
See also:
unexpected indent in ipython 0.10.1
https://github.com/ipython/ipython/issues/573
thanks
Just submitted a pull request that should fix this. For large blocks delimited by multiple newlines, %cpaste is still recommended.