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53 lines
2.0 KiB
Bash
Executable File
53 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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#
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# $Id: sync_parallel_unix.sh,v 1.7 2018/12/06 10:09:03 gilles Exp gilles $
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# Example for imapsync massive migration on Unix systems.
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# See also http://imapsync.lamiral.info/FAQ.d/FAQ.Massive.txt
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#
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# Data is supposed to be in file.txt in the following format:
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# host001_1;user001_1;password001_1;host001_2;user001_2;password001_2;
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# ...
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# Separator is character semi-colon ";" it can be changed by any character changing IFS=';'
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# in the while loop below.
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# # Each line contains 6 columns, columns are parameter values for
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# --host1 --user1 --password1 --host2 --user2 --password2
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# and a trailing empty fake column to avoid CR LF part going
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# in the 6th parameter password2. Don't forget the last semicolon.
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#
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# You can add extra options after the last line
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# Use character backslash \ at the end of each supplementary line, except for the last one.
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# The credentials filename "file.txt" used for the loop can be renamed
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# by changing "file.txt" below.
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# The part 'echo {1} | egrep "^#" > /dev/null ||' is just there to skip commented lines in file.txt
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# It can be removed if there is no comment lines in file.txt
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# --max-procs 7 means parallel will parallelize up to 7 jobs at a time,
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# adjust this value by monitoring your system capacity.
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# --delay 2 means parallel will pause 2 seconds after starting each job.
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check_parallel_is_here() {
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parallel --version > /dev/null || { echo "parallel command is not installed. Install it first."; return 1; }
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}
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check_parallel_is_here || exit 1 ;
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echo Looping with parallel on account credentials found in file.txt
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echo
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DRYRUN=echo
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# Comment the next line if you want to see the imapsync command instead of running it
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DRYRUN=
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parallel --max-procs 7 --delay 2 --colsep ';' --arg-file file.txt --line-buffer --tagstring "from {2} to {5} : " \
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'echo {1} | egrep "^#|^ *$" > /dev/null ||' \
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$DRYRUN imapsync --host1 {1} --user1 {2} --password1 {3} \
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--host2 {4} --user2 {5} --password2 {6}
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# {=7=} "$@" |