How to execute shell command and read back the result in XY?

[avsfan]

Hi,

I'm trying to figure out a way to get the current version number of a given file in my subversion repository from within XY. From the command line, I can run the following command:

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svn list --verbose myfile

which yields the result

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    274 me               2302 Feb 12 22:22 myfile

What I want to do is to get the "274" value into a script (the value will change depending on <myfile> is used).

I looked through the scripting command reference, and nothing jumped out at me. I don't do much scripting (yet!), so please be patient!

Thanks!

[40k]

You may be able to pipe the output from the command line away from stdout screen into a file.

for example:

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ffmpeg -help > help.txt

That will dump the output from the ffmpeg help command into a file called help.txt
You can then use the readfile function to read the output into a variable.

It's a bit of a workaround but perhaps it works.

[Marco]

Yes, with plain command line 40k's solution is the only way.

[avsfan]

You may be able to pipe the output from the command line away from stdout screen into a file.

for example:

Code: Select all

ffmpeg -help > help.txt

That will dump the output from the ffmpeg help command into a file called help.txt
You can then use the readfile function to read the output into a variable.

It's a bit of a workaround but perhaps it works.

OK, so the redirect works, so that's encouraging.

So then how would I execute it and control "where" the command executes (in the current directory would be just fine), and then how do I read it back in and use the first token of that string?

Thanks!

[serendipity]

If purpose is to read command line output then one can make use of clipboard too with "| clip".
eg:

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ipconfig | clip

saves two steps, creating text file and reading from text file.

[avsfan]

If purpose is to read command line output then one can make use of clipboard too with "| clip".
eg:

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ipconfig | clip

saves two steps, creating text file and reading from text file.

That sounds really promising -- so how do I call that command from a script (or from the addressbar to verify)? (I feel like I should know this, but I don't!)

Thanks!

[highend]

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	writefile("D:\test.bat", "ipconfig | clip");
	run """cmd.exe"" /c D:\test.bat", , 2, 0;
	text "<clipboard>";

[Marco]

Beware that clip:
-is not available in Win previous to 7
-clipboard may be overwritten
Source: http://ss64.com/nt/clip.html

[serendipity]

@Marco:Thanks for pointing that clip is a incompatible with earlier windows. I did not know that.

@avstefan: I would use 40k's method to be sure that it works on all OSs, if you are absolutely sure you'll be using Win7 or later then clip is fine. If so, something like this will work:

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  run "ipconfig | clip";
  text "<clipboard>";

Note: not all commands that work inside cmd window will work in run command line window. So try this first:

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  run "svn list --verbose myfile";
  text "<clipboard>";

If it doesn't work try highend's method.

[avsfan]

Thanks -- I've got it working!

I just used trim(...) to get rid of the leading whitespace before using gettoken(...), and then things worked great!

I guess for Windows versions prior to 7, I could just use readfile(...) to get the data, right?

Thanks again!

[serendipity]

I guess for Windows versions prior to 7, I could just use readfile(...) to get the data, right?

Yes, write to a text file and read that file. Basically, a combination of 40k's and highend's script will do the trick.