Whenever I am writing a script in perl or bash, I always wish that there was some way to have all the commands logged or output to screen. I know there is “set -x” option to have debugging enabled, …

Print all environment variables, including hidden ones […] <td> <div class="text codecolorer"> for _a in {A..Z} {a..z};do _z=${!${_a}*};for _i in `eval echo …

Here is the command to test that all the directories in your path actually exist. […] (<a class="zem_slink freebase/en/internal_field_separator" title="Internal field …