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Top Forums Shell Programming and Scripting Increase the performance of find command. Post 303041940 by MadeInGermany on Saturday 7th of December 2019 09:29:21 AM
Old 12-07-2019
The shorter pathnames is a small improvement only when post processing the output.
Then, you can bundle the names (shortens the command, not so much the run time).
But a + instead of the \; will have an impact. Then find runs cksum with many collected arguments - fewer runs are needed.
Code:
cd /tmp/moht && find . -type d \( -name 'BACKUP' -o -name 'STORE' -o -name 'LOGGER' \) -prune -o -type f -exec cksum {} +

Further, compare the speeds of the /usr/bin/find and the freeware find.
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cksum(n)							       cksum								  cksum(n)

NAME
cksum - calculate a cksum(1) compatible checksum SYNOPSIS
package require Tcl 8.2 package require cksum ?1.0? ::crc::cksum ?-format format? message ::crc::cksum ?-format format? -filename file DESCRIPTION
This package provides a Tcl-only implementation of the cksum(1) algorithm based upon information provided at in the GNU implementation of this program as part of the GNU Textutils 2.0 package. COMMANDS
::crc::cksum ?-format format? message ::crc::cksum ?-format format? -filename file The command takes string data or a file name and returns a checksum value calculated using the cksum(1) algorithm. The result is formatted using the format(n) specifier provided or as an unsigned integer (%u) by default. OPTIONS
-filename name Return a checksum for the file contents instead of for parameter data. -format string Return the checksum using an alternative format template. EXAMPLES
% crc::cksum "Hello, World!" 2609532967 % crc::cksum -format 0x%X "Hello, World!" 0x9B8A5027 % crc::cksum -file cksum.tcl 1828321145 SEE ALSO
sum(n), crc32(n) AUTHORS
Pat Thoyts KEYWORDS
cksum, checksum, crc, crc32, cyclic redundancy check, data integrity, security crc 1.0 cksum(n)
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