If you are not quite sure what BRU is going to do, you may want to use this option as a test, on a small subset of files. When the -w option (wait for confirmation) is specified, for each file, BRU:
If you have a very long list of files, the confirmation option can be tedious. BRU therefore provides a special response that lets you change your mind. If you type a g (for “go ahead”) instead of y or n, BRU will stop asking for confirmation. The following example shows how this response is used.
$ bru -cvw -f /dev/null ./bin
c ./: please confirm [y/n/g] y
c 2k of 4k  ./
c ./bin: please confirm [y/n/g] y
c 2k of 6k  ./bin
c ./bin/acctcom: please confirm [y/n/g] y
c 72k of 78k  ./bin/acctcom
c ./bin/adb: please confirm [y/n/g] y
c 68k of 146k  ./bin/adb
c ./bin/ar: please confirm [y/n/g] g
c 36k of 182k  ./bin/ar
c 120k of 302k  ./bin/as
c 16k of 318k  ./bin/asa
c 4k of 322k  ./bin/basename
. . .
IMPORTANT NOTE: Be aware that once you have typed g in response to BRU’s request for confirmation, you cannot go back to confirmation mode.