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> bash since it is the most common one.

Im pretty sure you meant to say "POSIX, because its rules are supported by multiple shells, and you can't depend on bash being available or a recent version on some systems".

Actually, I meant bash, that is, if one works solely with Linux systems. Bash has some very useful features and is the default on common Linux systems. Those are not POSIX. It was frozen in time long ago and is very limiting, do not wear that straightjacket if you do not have to.

For commercial unices or bsd's bash could be hard to use and using POSIX shell may make more sense.

From my experience, the extras Bash give you are likely to be bigger hints that it is time to move to a more appropriate language.

I'm definitely pro on shell scripts, but I'm also willing to use a different language when posix SH isn't going to cut it.

Any unix system will have sh(1).

Not all have bash. Not all have python. More probably have perl than python, so if you want something other than sh, then perl should probably be it.

I'm aware of that. When I said POSIX, I was referring to a POSIX-compatible sh implementation.

Just for the error handling and namespacing, python is more suited for big code bases. But there are way, way more reasons.

> What will happen to me if I write more complicated shell scripts?

As part of my job currently, I am going to delete it.

The same goes for poor python code, but I will take bad python over shell scripts any day of the week.

> As part of my job currently, I am going to delete it.

Go away, or I will turn you into a very small shell script.

    #!/bin/bash
    find / -name \*.sh -size +10k -type f -print0 | xargs -0 rm

Does this escape spaces in filenames properly?

Find's `-print0' will output results using null separation. Xargs' `-0' argument will treat input as null-separated.

    $ mangle find -delete
       ACTIONS
           -delete
                  Delete  files;  true  if  removal  succeeded.   If the removal failed, an error message is issued.  If -delete fails, find's exit status will be nonzero (when it eventually exits).  Use of -delete automatically turns on the
                  -depth option.

                  Warnings: Don't forget that the find command line is evaluated as an expression, so putting -delete first will make find try to delete everything below the starting points you specified.  When testing a  find  command  line
                  that you later intend to use with -delete, you should explicitly specify -depth in order to avoid later surprises.  Because -delete implies -depth, you cannot usefully use -prune and -delete together.

Is mangle an actual program that's publicly available? Searched for it but didn't find anything.

https://github.com/alphapapa/mangle

Thank you.