iopipe(1) USER COMMANDS iopipe(1)
NAME
iopipe - filter for buffering data
SYNOPSIS
iopipe [-b blk_sz] [-r]
DESCRIPTION
iopipe is a filter that buffers standard input and writes to
standard output. It significantly speeds up reading or
writing large files or transferring data to or from tape
devices.
By default, iopipe reads and writes 2048 512-byte blocks of
data at a time. The -b option can be used to set any other
value up to a maximum of 4096. The -r option is required if
a tape device is connected to a remote host.
EXAMPLE
To write to a tape device: /dev/qic
tar cf - files | iopipe > /dev/qic
ls * | cpio -oc | iopipe > /dev/qic
To read 256 blocks at a time from a tape device:
iopipe -b 256 < /dev/qic | cpio -icdBv
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