I mentioned that I use the fish shell, but I would like to share a common problem of mine – well, so far this is the only one I found.
I commonly use commands like this
find . -maxdepth 1 -type d -exec du -sh {} \;
This works great with bash, but in fish, you got the following error message
du: fts_open: No such file or directory
This happens because fish acts more aggressive on brace expansion than bash. It doesn’t treats it as a part of a command, but tries to expand it – but cannot succeed, because there is nothing.
Simply put that inside apostrophes and the shell will skip the brace expansion.
find . -maxdepth 1 -type d -exec du -sh '{}' \;
Not a big thing, but handy.