caput

caput [options] <PV name> <value> ...
caput -a [options] <PV name> <no of elements> <value> ...

Description

Put value to a PV.

The specified value is written to the PV (as a string). The PV’s value is read before and after the write operation and printed as “Old” and “New” values on stdout.

There are two variants to the arguments for this command. For the scalar variant without the -a flag, all the value arguments provided after the PV name are concatenated with a single space character between them, and the resulting string (up to 40 characters long unless the -S flag is given) is written to the specified PV.

The array variant with the -a flag writes an array of string values to the specified PV. The numeric argument giving the number of array elements is actually ignored, the array length to be written is actually controlled by the number of values provided on the command line.

Options

-h

Print usage information

CA options

-w <sec>

Wait time, specifies longer CA timeout, default is 1.0 second.

-c

Asynchronous get (use ca_get_callback instead of ca_get).

-p <prio>

CA priority (0–99, default 0=lowest)

Format options

-t

Terse mode — print only successfully written value, without name.

-l

Long mode name timestamp value stat sevr (read PVs as DBR_TIME_xxx)

Enum Format

By default: Auto — try value as ENUM string, then as index number

-n

Force interpretation of values as numbers

-s

Force interpretation of values as strings

Arrays

By default: put scalar

Value format: all value arguments concatenated with spaces

-S

Put string as an array of chars (long string)

-a

Put array

Value format: number of values, then list of values