before exec1.sub: one two three calling exec1.sub aa bb cc dd ee after exec1.sub with args: 0 after exec1.sub without args: 0 ./execscript: line 20: notthere: command not found 127 notthere: notthere: No such file or directory 127 /bin/sh: /bin/sh: cannot execute binary file 126 ./execscript: line 32: /: is a directory 126 /: /: cannot execute binary file 126 ./execscript: line 39: .: /: is a directory 1 127 0 this is bashenv ./exec3.sub: line 3: /tmp/bash-notthere: No such file or directory ./exec3.sub: line 3: exec: /tmp/bash-notthere: cannot execute: No such file or directory 126 ./execscript: line 61: notthere: No such file or directory 127 ./execscript: line 64: notthere: No such file or directory 127 ./execscript: line 67: notthere: No such file or directory 127 this is sh this is sh unset ok 5 ./exec5.sub: line 4: exec: bash-notthere: not found 127 this is ohio-state 0 1 1 0 42 42 0 1 1 0 0 1 0 1