CODEWITHSUNDEEP
javalinuxcommand-line
user123
user123

Reputation: 5407

writing command line output to text file

As there's simple way to write result to output file using > <outputfule.txt> but this does not work in my case

I have client server kind of scenario, where first I start the server - 

java -mx500m -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -loadClassifier classifiers/english.all.3class.distsim.crf.ser.gz &

Now server is in listening mode. Here I am starting client instant where I have issue.

java -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -client

This ask to entere the input sentence and prints result on command line on pressing enter. I tried in this way

java -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -client > result.txt

which stops client instant. I am ok if it read input from text file and write it to resultant text file.

What is correct way to do this?

Upvotes: 2

Views: 772

Answers (3)

KiranCK
KiranCK

Reputation: 97

If I understand your query correctly, you expect

" java -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -client "

to take input from "result.txt".

In that case, your should execute

"java -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -client < result.txt"

Corrected Reply:

Then you should try this .

"java -cp stanford-ner-with-classifier.jar edu.stanford.nlp.ie.NERServer -port 9191 -client < x.txt > y.txt"

Where you read input from x.txt and write output to y.txt

Upvotes: 2

Jaka
Jaka

Reputation: 1209

And if you want you can redirect both standard input and standard output at the same time:

java -cp stanford.jar NERServer -port 9191 -client < input.txt > result.txt

Or do something like this:

echo -e "line1\nline2" | java -cp stanford.jar NERServer -port 9191 -client > r.txt

When doing input/output redirection the application runs exactly the same way as if the input/output would not be redirected.

It does not know or care if you type the input from the keyboard or this is redirected from somewhere. So it will always print same things to the standard output (in your case)

press RETURN to NER tag it, or just RETURN to finish

There is nothing that you can do about this apart from throwing away the first line from the results.txt when you interpret them.

Upvotes: 1

Petr Mensik
Petr Mensik

Reputation: 27506

Try

echo "input sequence" | xargs java -cp stanford.jar NERServer -port 9191 -client > result.txt

This would be for redirecting command with parameters to the file.

If you simply want to pass arguments to a command, than you just need

java -cp stanford.jar NERServer -port 9191 -client < result.txt`

or

cat params.txt | xargs java -cp stanford.jar NERServer -port 9191 -client

xargs should send your parameters from the file to the java program

P.S. I omitted the package names for the sake of brevity and readability

Upvotes: 1

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