How to get environment variable

This is a discussion on How to get environment variable within the Linux Programming forums, part of the Platform Specific Boards category; Hi, I want to get value stored in environment variable $FILEPATH,which is set as: $FILEPATH=/home/File I have used following code ...

  1. #1
    Registered User
    Join Date
    Jan 2007
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    104

    How to get environment variable

    Hi,
    I want to get value stored in environment variable $FILEPATH,which is set as:
    $FILEPATH=/home/File
    I have used following code but it returning NULL......
    Code:
    char *var = getenv("$FILEPATH");
    
      printf ("The environment variable is: %s", var);
    When I echo it on command prompt ,then it gives me correct value but not in program.....

    Can anybody help in resolving this problem.......

    Thanks

  2. #2
    Kernel hacker
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    Farncombe, Surrey, England
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    remove the $ from your string when calling getenv.

    The $ is part of the shell's syntax to say "this is an environment variable", rather than part of the environment variables actual name.

    --
    Mats
    Compilers can produce warnings - make the compiler programmers happy: Use them!
    Please don't PM me for help - and no, I don't do help over instant messengers.

  3. #3
    Registered User
    Join Date
    Jan 2007
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    104

    Thanks

    Thanks for help......it solved the problem......

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