The Ubuntu 16.04 implementation of the 4.4 BSD script program dumps core when trying to open a file in a non-existant directory.

script-missing-dir.md

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+
+The `script` utility dumps core when one attempts to log to a file in a 
+non-existent directory.
+
+```
+~$ mkdir script-demo
+~$ cd script-demo
+~/script-demo$ script nosuchdir/file.txt
+Script started, file is nosuchdir/file.txt
+script: cannot open nosuchdir/file.txt: No such file or directory
+                                                                 Script done, file is nosuchdir/file.txt
+Segmentation fault (core dumped)
+
+```
+
+
+
+
+```
+~$ which script
+bsdutils: /usr/bin/script
+
+~$ dpkg -S `which script`
+Desired=Unknown/Install/Remove/Purge/Hold
+| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
+|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
+||/ Name           Version             Architecture Description
++++-==============-===================-============-=================================
+ii  bsdutils       1:2.27.1-6ubuntu3.4 amd64        basic utilities from 4.4BSD-Lite
+```
+
+One expects instead that the program exit with an error message:
+
+
+```
+~$ mkdir script-demo
+~$ cd script-demo
+~/script-demo$ script nosuchdir/file.txt
+Script started, file is nosuchdir/file.txt
+script: cannot open nosuchdir/file.txt: No such file or directory
+```