failed attempts to intercept copy command when the cursor is in the empty text field...
[LeanCalc.git] / help / getenv
1 NAME
2     getenv - get an environment variable
3
4 SYNOPSIS
5     getenv(env)
6
7 TYPES
8     env         str
9
10     return      str or nil
11
12 DESCRIPTION
13     This function returns the value of the environment variable named by
14     the string env.  If no such environment variable exists, nil is returned.
15
16 EXAMPLE
17     > putenv("name", "value")
18             0
19     > getenv("name")
20             "value"
21     > putenv("name=val2")
22             0
23     > getenv("name")
24             "val2"
25     > isnull(getenv("unknown"))
26             1
27
28 LIMITS
29     none
30
31 LINK LIBRARY
32     none
33
34 SEE ALSO
35     putenv
36