Using Standard Output With the ufsdump Command

When you specify a dash (-) as the dump-file argument, the ufsdump command writes to standard output.

The -v option (verify) does not work when the dump-file argument is standard output.

You can use the ufsdump and ufsrestore commands in a pipeline to copy a file system by writing to standard output with the ufsdump command and reading from standard input with the ufsrestore command. For example:

# ufsdump 0f - /dev/rdsk/c0t0d0s7 | (cd /home; ufsrestore xf -)