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- . filename [arguments]
- source filename [arguments]
- Read and execute commands from filename in the current shell
- environment and return the exit status of the last command exe-
- cuted from filename. If filename does not contain a slash,
- file names in PATH are used to find the directory containing
- filename. The file searched for in PATH need not be exe-
- cutable. When bash is not in posix mode, the current directory
- is searched if no file is found in PATH. If the sourcepath
- option to the shopt builtin command is turned off, the PATH is
- not searched. If any arguments are supplied, they become the
- positional parameters when filename is executed. Otherwise the
- positional parameters are unchanged. The return status is the
- status of the last command exited within the script (0 if no
- commands are executed), and false if filename is not found or
- cannot be read.
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