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I am working on TACL/OSS environment where I need to make a copy of unstructured disk file and then work on it. FUP DUP command creates a new copy of file which is unstructured one. I have code written in Unix for manipulating a file(.txt) tested on my local system. But the same code does not work for unstructured disk file. Is there any way to access(read/write/modify) the unstructured disk file on Tandem system through Unix or Python 2.7, OR able to convert that file into text format using TACL commands?

Christie
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2 Answers2

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You should be able to use regular Unix-style tools with the file. Files in the local Guardian space are addressable through /G/disk/subvol/file

So my Guardian file $as.temp.test is the same as /G/as/temp/test

And in OSS I can do things like:

cat /G/as/temp/test
head -c 8 /G/as/temp/test

You will need the right tools in OSS of course and this won't work if you have an old operating system and the Guardian disk is virtual (but I think this was fixed about 6 years ago).

Andy Simpson
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Apart from what @Andy Simpson has mentioned about the format of path to be used You might also have to use edittoc to convert the guardian edit file to unix text file

Pras
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  • I got the reference of edittoc in HP reference manual, not familiar with this command . I will try it. Thank you. – Christie Feb 26 '19 at 10:37
  • edittoc creates a object of type 180 which can be accessed only in read mode. – Christie Mar 05 '19 at 07:07
  • Have you tried changing permissions on the file(the one produced by edittoc), or you can copy the file to oss and operate on it there – Pras Mar 06 '19 at 17:02
  • I did, but did not understand what went wrong. Hence i copied the file on local through ftp, converted it to txt and then moved it to OSS path. – Christie Mar 07 '19 at 10:11