Bash script deleting my files, and editing files in subdirectories question Post: 302887120

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Top Forums Shell Programming and Scripting Bash script deleting my files, and editing files in subdirectories question Post 302887120 by Chubler_XL on Wednesday 5th of February 2014 06:37:58 PM

02-05-2014

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continue just resumes at the next iteration of the enclosing for loop. In this particular code that means stop processing the current file and start processing the next file.

The current code is less than ideal as it will rename existing renamed files and skip files.

see below:

Code:

$ touch abc_{0000..0003} more/img_{0000..0003} file{000..002}.jpg
$ ls
abc_0000  abc_0001  abc_0002  abc_0003  file000.jpg  file001.jpg  file002.jpg  more  script
$ ./script file jpg
./abc_0002 -> file003.jpg
./abc_0003 -> file004.jpg
./file000.jpg -> file005.jpg
./file001.jpg -> file006.jpg
./file002.jpg -> file007.jpg
./more/img_0000 -> file008.jpg
./more/img_0001 -> file009.jpg
./more/img_0002 -> file010.jpg
./more/img_0003 -> file011.jpg
$ ls
abc_0000  file003.jpg  file005.jpg  file007.jpg  file009.jpg  file011.jpg  script
abc_0001  file004.jpg  file006.jpg  file008.jpg  file010.jpg  more

This slight update should be a little safer.

Code:

(( $# == 2 )) || {
        printf 'Usage: %s <prefix> <ext>\n' "$0"
        exit 1
}

prefix=$1
type=$2
number=1

find . -type f -print | while read file; do

        # skip already processed files
        [[ "$file" = ./$prefix[0-9][0-9][0-9].$type ]] && continue

        # skip executable files (eg this script)
        [ -x "$file" ] && continue

        # find next unused sequence
        while true
        do
            printf -v new '%s%03d.%s' "$prefix" $((++number)) "$type"
            [ -f "$new" ] || break
        done

        mv "$file" "$new"
        echo "$file -> $new"

done

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bashbug

BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--version] [--help] [email-address]

DESCRIPTION

       bashbug	is  a shell script to help the user compose and mail bug reports concerning bash in a standard format.	bashbug invokes the editor
       specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill  in  the  appropriate
       fields  and  exit  the  editor.	 bashbug  then	mails the completed report to bug-bash@gnu.org, or email-address.  If the report cannot be
       mailed, it is saved in the file dead.bashbug in the invoking user's home directory.

       The bug report format outline consists of several sections.  The first section provides information about the  machine,	operating  system,
       the  bash  version, and the compilation environment.  The second section should be filled in with a description of the bug.  The third sec-
       tion should be a description of how to reproduce the bug.  The optional fourth section is for a proposed fix.  Fixes are encouraged.

ENVIRONMENT

       bashbug will utilize the following environment variables if they exist:

       EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs.

       HOME   Directory in which the failed bug report is saved if the mail fails.

       TMPDIR Directory in which to create temporary files and directories.

SEE ALSO

       bash(1)

AUTHORS

       Brian Fox, Free Software Foundation
       bfox@gnu.org

       Chet Ramey, Case Western Reserve University
       chet@po.cwru.edu

GNU Bash-4.0							   1998 July 30 							BASHBUG(1)