Bash command question

Question

I volunteered to download my school's entire website, as the current host is going into liquidation and they can't get a copy of the database. So I downloaded the whole thing with wget. Now, the problem is that many (several hundred) of the files have names like "featureDetails.asp?featureID=2", which is fine on a JFS partition, but can't be on a FAT partition.
So, my question is, how do I replace all "?"s, and "="s with "-"?
PS: I really have no idea where to post this, so picked this board at random

Answer 1

fwojciec wrote:
If it's just a matter of renaming the files then you can use something line this:
for i in *; do j=$(echo "$i" | sed 's/?/-/g;s/=/-/g'); mv "$i" "$j"; done
This will rename all files in the current directory.
EDIT:
or something like this would work as well:
for i in *; do j=$(echo "$i" | sed 's/[?=]/-/g'); echo "$i" "$j"; done
These certainly work, and for small jobs they are reasonable, but they are both very inefficient because a new process is forked for every file to be renamed.  Instead consider this:
for i in *; do mv "$i" "${i//\?/-/}" ; done
This syntax is documented in the "Parameter Expansion" portion of the bash(1) manpage.