Assertion: script's command | /r/AtLocation | the file
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Source sentences:
text: The lack of an interpreter directive, but support for shell scripts, is apparent in the documentation from Version 7 Unix in 1979, which describes instead a facility of the Bourne shell where files with execute permission would be handled specially by the shell, which would (sometimes depending on initial characters in the script, such as ":" or "#") spawn a subshell which would interpret and run the commands contained in the file.