Merge commit 'e2a5e6750a362e0fd8c89f3d1d40a623ba6d1fd6'

labs/03_shlab/trace16.txt

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+#
+# trace16.txt - Tests whether the shell can handle SIGTSTP and SIGINT
+#     signals that come from other processes instead of the terminal.
+#
+
+/bin/echo tsh> ./mystop 2 
+./mystop 2
+
+SLEEP 3
+
+/bin/echo tsh> jobs
+jobs
+
+/bin/echo tsh> ./myint 2 
+./myint 2
+