CODEWITHSUNDEEP
csvparameterskdb+q-lang
Alim Hasanov
Alim Hasanov

Reputation: 197

kdb+ : Command Line parameter as a filename to be saved as

How do I parse a command line parameter and use it as a variable in the script to be used as filename to be saved as. I have tried the below but it is not working

fname:.z.X[2]
.....
...more code...
....
/Save the table into a csv file
`:(fname,".csv") 0:csv 0: table

Upvotes: 0

Views: 322

Answers (1)

Sean O'Hagan
Sean O'Hagan

Reputation: 1697

You need to always remember the left of right evaluation.
In your case you are trying to write the csv delimited table to (fname,".csv"), which is only a string.
Further you want to use `$ to parse to a symbol (not `:), and use hsym to create a file path (prefix with ":")

bash> q script.q filename
q)(hsym `$ .z.x[0],".csv") 0:csv 0: ([]10?10)
`:filename.csv

Upvotes: 2

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