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--- linux:rsync [2022/08/05 07:03] – [RSYNC] admin
+++ linux:rsync [2024/02/28 11:56] (current) – [RSYNC transfer rate скорость копирования pv] admin
@@ Line 3: / Line 3: @@
 <code BASH>
 #RSYNC
+#localcopy with create directory influxdb2 in dst ../docker
+rsync -aHAXvh ./influxdb2 ../docker
 # Reception PUB
@@ Line 12: / Line 15: @@
 Проверить каталоги на предмет изменение содержания
 <code BASH>
-rsync -a --itemize-changes --dry-run /var/www/dokuwiki/data/pages/ /opt/docker-dokuwiki/www/data/pages/
+#Using rsync to verify the integrity of a duplicate
+#To guarantee that this test physically re-reads the files from the drive media, I suggest powering-down both drives and restarting them before running this test.
+# This  will clear their internal volatile caches.
+sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches'
+#Then to re-read both trees and compare their checksums:
+rsync --dry-run --checksum --itemize-changes --archive SRC DEST
+#Modern rsync checksum uses MD5, which is 128 bits. The likelihood of this failing to detect an error in an individual file is astronomically low (some discussion here), #but not impossible.
+#example
+rsync -a --itemize-changes --checksum --dry-run /var/www/dokuwiki/data/pages/ /opt/docker-dokuwiki/www/data/pages/
+</code>
+# list elements
+<code BASH>
+# list big elements
+\ls -l | awk 'BEGIN{mega=1048576} {if ($5 >= mega) {$5 = $5/mega "MB"; print;}}'
 </code>
 ===== RSYNC transfer rate скорость копирования pv =====
-<code>
+<code BASH>
--- https://unix.stackexchange.com/questions/3575/display-transfer-speed-when-performing-cp-from-the-command-line
+## https://unix.stackexchange.com/questions/3575/display-transfer-speed-when-performing-cp-from-the-command-line
-rsync --progress source destination
+ rsync --progress source destination
-pv -p file1 > file2
+ pv -p file1 > file2
 </code>
 {{:linux:pasted:20211121-044853.png}}