how to pass commandline argument include "|" to java program

Question

One of the arguments passed to my java program is like this, ab|cd. Initially, when I run the java program, like this,

$ java className ab|cd

it fails, since | is interpreted in the linux shell as a pipe symbol. So only ab is passed into java program. So I made a second attempt:

$ java className "ab|cd"

This time, "ab|cd" is passed in, but the value includes the double quotes. What the program is really intended to have is ab|cd. How can I pass in the correct value without the quotes?

you can also quote(`"ab|cd"` or `'ab|cd')` the commandline arguments — Prince John Wesley, Jun 22 '12 at 16:53

score 8 · Accepted Answer · edited Jun 22 '12 at 16:52

8

In the command shell, you can escape out characters using the '\' character.

 java className ab\|cd

edited Jun 22 '12 at 16:52

Prince John Wesley

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answered Jun 22 '12 at 16:50

Steven Mastandrea

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score 3 · Answer 2 · answered Jun 22 '12 at 16:54

3

Try (for Linux):

$ java className ab\|cd

For Windows:

java className ab^|cd

answered Jun 22 '12 at 16:54

Kazekage Gaara

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score 2 · Answer 3 · answered Jun 22 '12 at 16:57

2

Try this,

"\" is used inorder to nullify the effect of the characters which have special meanings.

java className ab\|cd

answered Jun 22 '12 at 16:57

Kumar Vivek Mitra

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score -2 · Answer 4 · answered Jun 22 '12 at 16:53

-2

Maybe try this:

arg="ab|cd"
java className $arg

answered Jun 22 '12 at 16:53

Adam Sznajder

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how to pass commandline argument include "|" to java program

4 Answers4