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daearol
‎10-23-2016
  • 6 Posts
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Re: X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-17-2016 05:33 AM
‎05-17-2016 05:33 AM
Aaaaaah....the touch command actually modifies the timestamp, I though just writing to the file would be enough. Thanks guys. 🙂 ... View more

Re: X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-17-2016 02:44 AM
‎05-17-2016 02:44 AM
It's going to change after a sleep because I append the output of the stat command after the sleep. x "stat >> /tmp/testfile"; ##- Please type your reply above this line. Simple formatting, no attachments. -## ... View more

Re: X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-17-2016 02:34 AM
‎05-17-2016 02:34 AM
Hi Tom, I was checking the modify time stamp. To see when the file was last edited. I get the expected results in a bash script, of a 5 second difference between the two time stamps. When I do this through SAS both time stamps are equal to the time I execute the script. ... View more

Re: X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-16-2016 07:09 PM
‎05-16-2016 07:09 PM
I'm doing this because I'm just learning how BASE SAS works, I'm fully aware I could put this in a bash script. Secondly the team I look after use x commands quite a lot in in their overnight SAS jobs. I'll take a look at the XWAIT system option. Thank you. ##- Please type your reply above this line. Simple formatting, no attachments. -## ... View more

Re: X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-16-2016 04:00 AM
‎05-16-2016 04:00 AM
Hi sorry, it's this: x "touch /tmp/testfile x "stat >> /tmp/testfile x "sleep 5" x "stat >> /tmp/testfile" 1st output:   Access: 2016-05-11 16:30:57.956598140 +0100 Modify: 2016-05-11 16:30:57.956598140 +0100 Change: 2016-05-11 16:30:57.956598140 +0100   2nd output after the sleep:   Access: 2016-05-11 16:30:57.956598140 +0100 Modify: 2016-05-11 16:30:57.971598140 +0100 Change: 2016-05-11 16:30:57.971598140 +0100 >For example if you are trying to look at the status of the LOG file generated by a running SAS program you need to remember that SAS buffers its writes to the disk.   Okay but how does that make sense if you're pausing the script for an arbitrary amount of time? I've even tried sleeping using a SAS function, but all the x commands appear execute regardless.   Sorry for the late reply. ... View more

X commands, how do they work?

by Calcite | Level 5 in Administration and Deployment
‎05-13-2016 05:07 AM
‎05-13-2016 05:07 AM
Hello, I'm new to SAS Administration and SAS in general. I'm teaching myself BASE SAS and I've learned recently that you can issue OS commands. However I've come across something strange that I can't find answers to. When I run the stat command(should mention I'm working within a linux environment), the time stamps are just plane wrong, compared to when I issue the command normally through the bash prompt.   For example, I touch a file with an x command, run the stat command and appened it to the new file, I'll then sleep for a while and the run another stat command and then append it to the file.   Both time stamps are equal to the time I execute the SAS script, where really I'd expect the second timestamp to be equal to the amount of time after the sleep command has been issued. Is this black magic?   Not sure if it's relavent, but I'm running SAS 9.3. ... View more
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‎10-23-2016 06:17 PM
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