Eval121¶

Synopsis¶

This operator has one parameter, two inputs and one output. The corresponding shell script executes the parameter as a command on both inputs, and copies the result to the output.

Parameters¶

1 parameter, treated as the command to be executed.

Inputs¶

2 input files.

Outputs¶

1 output: the result of the command

Shell code¶

cmd=$1; shift
input1=$1; shift
input2=$1; shift
output=$1; shift

$cmd $input1 $input2 > $output

Example¶

This operator is mainly used for combining two files :

• in all for-loops, where the accumulator is handled by a cat or a paste in the loop
• in the discretization process discretization.aws for computing the dictionary starting from the data and the columns format