I want to give the file OpenRocket-13.11.1.jar executable permission by using chmod. So what has gone wrong with this command:

 /HomeFolder/Downloads chmod +x OpenRocket-13.11.1.jar

It says no such directory or file found. Is there a problem with my Directory name?

  • Where is your OpenRocket-13.11.1.jar exactly? – P.-H. Lin Sep 19 '14 at 10:41
  • it's inside the home folder ,in downloads.Do you need something more specific? – CENTAUR Sep 19 '14 at 10:44
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    Question far from being clear. Try to cd into the holding directory and do: chmod [ugoa]+x OpenRocket-13.11.1.jar. Choose which of user (u), group (g), others (o) or all (a) you want to bless with execute privilege. (I guess that u is in, but perhaps some else too). – Cbhihe Sep 19 '14 at 10:44
  • What is the exact error? – muru Sep 19 '14 at 10:46

If you want to make some file executable you should use

chmod +x <path_to_your_file>

However here you are executing a .jar file. so you can also execute it with the help of java like this

java -jar  <path_to_your_jar_file>
  • how exactly do I specify the path to my file. As far as I can see something went wrong over there.(I am a novice in this since i have never actually written a path name) – CENTAUR Sep 19 '14 at 10:56
  • @user235315 something like ~/Downloads/OpenRocket-13.11.1.jar – muru Sep 19 '14 at 10:57
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    where exactly your jar file is? If it is in your Downloads directory which is inside your home folder, you can use chmod +x ~/Downloads/OpenRocket-13.11.1.jar or java -jar ~/Downloads/OpenRocket-13.11.1.jar – g_p Sep 19 '14 at 10:58
  • Also this is helpful for symbolic notation & use of octal – Pandya Sep 19 '14 at 13:26

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