If you need to narrow down a list of folders in a directory to the set that you need to either archive or cleanup from a linux server, here's a quick command.
First, add the list of folders that you know you want to keep to a file named file-list.txt. All other folders will be printed from this command.
$ ls -hal | grep ^d | grep -Fxvf file-list.txt
What the flags mean:
-mtime +7
More than seven days old
-maxdepth 1
Only search the current directory, not recursively
-F, --fixed-strings
Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched.
-x, --line-regexp
Select only those matches that exactly match the whole line.
-v, --invert-match
Invert the sense of matching, to select non-matching lines.
-f FILE, --file=FILE
Obtain patterns from FILE, one per line. The empty file contains zero patterns, and therefore matches nothing.
If you want get a count to make sure the all folders listed in file-list.txt exist in the current directory, here's another command.
$ ls -hal | grep ^d | grep -Fxf file-list.txt | wc -l
