running OS commands

[Bob]

How can I call OS commands from kdb+?

[Ryan Hamilton]

Hi Bob,

Anything entered after a slash \ is first checked to see if its a kdb command, if not it is then ran as a console command. Notice below I run two dos commands (cd and echo) but the last \p call is in faact a kdb command to get/set the port.

`
q)\cd
“C:\\Users\\admin”
q)\echo “test”
“\”test\” ”
q)\p
0
q)\p 5000
q)\p
5000`

Alternatively you can make the same calls using a system format:
`q)system “cd”
“C:\\Users\\admin”
q)system “echo 12”
“12 ”
q)system “p”
5000`

All kdb’s internal commands are one letter so overlap isn’t usually an issue.

– Ryan

[Author]

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