Final answer:
The flag for procdump is -r for regular expression (regex). Regular expressions are used to search for and match patterns within strings.
Step-by-step explanation:
The flag for procdump is -r for regular expression (regex).
Regular expressions are used to search for and match patterns within strings. The -r flag in procdump allows you to use regular expressions to specify the pattern or criteria for dumping the process memory.
For example, if you want to dump the memory of a process whose name starts with 'chrome', you can use the -r flag with the regular expression '^chrome'.