1before exec1.sub: one two three 2calling exec1.sub 3aa bb cc dd ee 4after exec1.sub with args: 0 5 6after exec1.sub without args: 0 7./execscript: line 20: notthere: command not found 8127 9/tmp/bash: notthere: No such file or directory 10127 11/bin/sh: /bin/sh: cannot execute binary file 12126 13./execscript: line 39: /: is a directory 14126 15/: /: is a directory 16126 17./execscript: line 46: .: /: is a directory 181 19127 200 21this is bashenv 22./exec3.sub: line 3: /tmp/bash-notthere: No such file or directory 23./exec3.sub: line 3: exec: /tmp/bash-notthere: cannot execute: No such file or directory 24126 25./execscript: line 68: notthere: No such file or directory 26127 27./execscript: line 71: notthere: No such file or directory 28127 29./execscript: line 74: notthere: No such file or directory 30127 31this is sh 32this is sh 33unset 34ok 355 36./exec5.sub: line 4: exec: bash-notthere: not found 37127 38this is ohio-state 390 401 411 420 4342 4442 450 461 471 480 490 501 510 521 53testb 54after 55