Learning Julia

Example

Now that we have read about filesystem and I/O operations, we can now give a fully fledged example of how a simple Julia script can be created to read and write data into a file.

Here, we have a file named sample.jl, which we have created in the following manner:

# Arguments
in_file = ARGS[1]
out_file = ARGS[2]

# Keeping track using a counter
counter = 0
for line in eachline(in_file)
    for word in split(line)
        if word == "Julia"
            counter += 1
        end
    end
end

# write the contents to the output file
write(out_file, "the count for julia is $counter")

# read the contents fom the o/p file for user's help
for line in readlines(out_file)
    println(line)
end

This script basically takes in two inputs:

• in_file, which is a TXT file from which we will ...