| ZEROS(1) | General Commands Manual | ZEROS(1) |
zeros - write sequence of bytes
zeros [ -r ] [ -vvalue ] [ [ blocksize... [ numblocks ] ]
Zeros writes a sequence of bytes to standard output. The arguments specify the nature of the bytes, block size in bytes, and the number of blocks to output. The -r option requests that each block be the same, but randomly generated. The -vvalue option sets the value of each byte (default 0). Typically zeros has a specialised use: ensuring a file has the desired number of blocks in it to hold a file system image, before reaming it.
To create and initialize a file system containing 2048 1024 byte blocks
zeros 1024 2048 >kfs.file
mount -c {disk/kfs -r kfs.file} /n/local
/appl/cmd/zeros.b