Execute linux command line within JAVA

Question

Well, I have a c program that is stored in /bin, I want to execute the program from a JAVA GUI but it's not working..

I tried

Process p = Runtime.getRuntime().exec("lexical " + nameOfFile+"/Source.cpp " + nameOfFile+"temp.c");
p.waitFor();

nameOfFile holds the absolute path for the workspace directory, lexical is my c program

Use a ProcessBuilder, not Runtime.exec()

fge
– fge

2014-03-15 02:47:55 +00:00
Commented Mar 15, 2014 at 2:47 — fge
– fge, Commented Mar 15, 2014 at 2:47

R Kaja Mohideen · Accepted Answer · 2014-03-15 02:45:32Z

1

You have to provide the absolute path to the binary you're trying to execute from Java. Java won't pick up the application from your Linux $PATH.

answered Mar 15, 2014 at 2:45

R Kaja Mohideen

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5 Comments

R Kaja Mohideen Over a year ago

Please update your question with exact exception you're getting to help you.

geekybedouin Over a year ago

Am not getting any exception .. the binary is supposed to cut comments and process the define statements as a preprocesser and then copy the new code to a temp file.. and its not doing that.. in terminal it works .. from JAVA no..

R Kaja Mohideen Over a year ago

Try getting the InputStream from your Process and print in your Java program console. Your binary may be telling something why it can't do the job, also print the return value.

geekybedouin Over a year ago

Actually it's not executing the binary at all

R Kaja Mohideen Over a year ago

That's the reason I suggest to capture the process stream to know what is really getting executed.

geekybedouin · Accepted Answer · 2014-03-15 10:51:42Z

0

Seems like the problem was the multiple parameters I was sending.. I had to put them in a string[] command and the execute..

Thanks a lot for your help and time

answered Mar 15, 2014 at 10:51

geekybedouin

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