This is the command sponge that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator
PROGRAM:
NAME
sponge - soak up standard input and write to a file
SYNOPSIS
sed '...' file | grep '...' | sponge [-a] file
DESCRIPTION
sponge reads standard input and writes it out to the specified file. Unlike a shell
redirect, sponge soaks up all its input before writing the output file. This allows
constructing pipelines that read from and write to the same file.
sponge preserves the permissions of the output file if it already exists.
When possible, sponge creates or updates the output file atomically by renaming a temp
file into place. (This cannot be done if TMPDIR is not in the same filesystem.)
If the output file is a special file or symlink, the data will be written to it,
non-atomically.
If no file is specified, sponge outputs to stdout.
OPTIONS
-a
Replace the file with a new file that contains the file's original content, with the
standard input appended to it. This is done atomically when possible.
Use sponge online using onworks.net services