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D.2.2.17 which
Procedure from library general.lib (see general_lib).
- Usage:
which(command); command = string expression
- Return:
Absolute pathname of command, if found in search path.
Empty string, otherwise.
- Note:
Based on the Unix command ’which’.
Example:
| LIB "general.lib";
which("sh");
→ /bin/sh
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