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Full Discussion: Help with Complex Bash Script
Top Forums Shell Programming and Scripting Help with Complex Bash Script Post 302990747 by RudiC on Tuesday 31st of January 2017 11:57:46 AM
Old 01-31-2017
Well, try
Code:
for FN in *.pdf
   do   TMP=${FN#*_*_*_*_*_}
        TMP=${TMP%%_*}
        mkdir "$TMP"
        echo mv -v "$FN" "$TMP"
   done

The echo is for safety reasons; remove it if you're happy with the results it proposes. No error checking is done; add some decent check before using it in production. Esp., we make use of the behaviour of mkdir failing without further complications should the directory already exist, but it could fail for other reasons.
 

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LEARN ABOUT LINUX

shtool-move

SHTOOL-MOVE.TMP(1)					      GNU Portable Shell Tool						SHTOOL-MOVE.TMP(1)

NAME

       shtool-move - GNU shtool enhanced mv(1) replacement

SYNOPSIS

       shtool move [-v|--verbose] [-t|--trace] [-e|--expand] [-p|--preserve] src-file dst-file

DESCRIPTION

       This is a mv(1) style command enhanced with the ability to rename multiple files in a single operation and the ability to detect and not
       touch existing equal destinations files, thus preserving timestamps.

OPTIONS

       The following command line options are available.

       -v, --verbose
	   Display some processing information.

       -t, --trace
	   Enable the output of the essential shell commands which are executed.

       -e, --expand
	   Expand asterisk in src to be used as ""%"n" (where n is 1,2,...) in dst-file. This is useful for renaming multiple files at once.

       -p, --preserve
	   Detect src-file and dst-file having equal content and not touch existing destination files, thus perserving timestamps. This is useful
	   for applications that monitor timestamps, i.e. suppress make(1L) repeating actions for unchanged files.

EXAMPLE

	#   shell script
	shtool move -v -e '*.txt' %1.asc

	#   Makefile
	scanner.c: scanner.l
	    lex scanner.l
	    shtool move -t -p lex.yy.c scanner.c

HISTORY

       The GNU shtool move command was originally written by Ralf S.  Engelschall <rse@engelschall.com> in 1999 for GNU shtool.

SEE ALSO

       shtool(1), mv(1), make(1).

18-Jul-2008							   shtool 2.0.8 						SHTOOL-MOVE.TMP(1)
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