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Top Forums Shell Programming and Scripting Find the original file size of encrypted file Post 303000784 by jim mcnamara on Wednesday 19th of July 2017 05:04:42 PM
Old 07-19-2017
Except that in order to write to a pipe the result has to be decrypted first.

I saw this request earlier and could not think of a way around the requirement of reading the entire file and decrypting the data.

It seems to me like you may not see what is really going on. rbatte's example is very good but it does open and read the file.

You could also decrypt the file to /tmp (tmpfs file system) which in solaris is actually memory manged by the kernel. Not disk. Very fast. Pipes can be implemented as shared memory objects as well. If you do that, delete all the files in /tmp as you go.
 

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install-solaris(1M)													       install-solaris(1M)

NAME
install-solaris - install the Solaris operating system SYNOPSIS
install-solaris install-solaris invokes the Solaris Install program. Depending on graphical capability and available memory at the time of invocation, install-solaris invokes either a text-based installer or a graphical installer. The following minimum requirements for physical memory dictate which features are available during installation: For SPARC machines: 128 MB Minimum physical memory for all installation types 128 MB Minimum physical memory required for windowing system 384 MB Minimum physical memory required for graphical-based installation For x86 machines: 256 MB Minimum physical memory for all installation types 256 MB Minimum physical memory required for windowing system 512 MB Minimum physical memory required for graphical-based installation In some cases, even if the minimum physical memory is present, available virtual memory after system startup can limit the number of fea- tures available. install-solaris exists only on the Solaris installation media (CD or DVD) and should be invoked only from there. Refer to the for more details. install-solaris allows installation of the operating system onto any standalone system. install-solaris loads the software available on the installation media. Refer to the for disk space requirements. Refer to the for more information on the various menus and selections. See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcdrom (Solaris instal- | | |lation media) | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ pkginfo(1), install(1M), pkgadd(1M), attributes(5) It is advisable to exit install-solaris by means of the exit options in the install-solaris menus. 23 Sep 2005 install-solaris(1M)
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