https://gist.github.com/lexszero/03b959b70ba31b3441d7
Костыль для профайлинга башеговна.

[I]l…@n…d ~ > cat 1.sh 
#!/bin/bash
echo foo
sleep 1
echo bar

[I]l…@n…d ~ > bash_dbg 1.sh 
foo
bar
1453349630.074218273    + bash -x 1.sh
 0.001578295    + echo foo
 0.000074152    + sleep 1
 1.003924465    + echo bar
 0.000391305    + set +x

Total:  1.005968217