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Move several files into specific directories with a loop

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# 8  
Old 03-03-2020
I'm sorry, I realize I may be over-explaining.
my parent directory is: files2folders
inside the parent are 4 directories and 4 files:
Code:
01_webasset_100
02_webasset_200
03_webasset_300
04_webasset_400

1244081312562_01.jpg
1244081312562_02.jpg
1244081312562_03.jpg
1244081312562_04.jpg

I want to put each of those files into those folders using the file number suffixes and folder prefixes as "strings"?...

Thanks
Moderator's Comments:
Mod Comment
Do not ignore code tags or warnings to use them, thank you!
Last edited by Peasant; 03-03-2020 at 11:06 AM.. Reason: Added code tags.
# 9  
Old 03-03-2020
Start with a decent spec in the first place.


Try
Code:
cd files2folders
for FN in *.jpg
  do    NR="${FN%.*}"
        NR="${NR#*_}"
        echo mv "$FN"  "$NR"*
  done
mv 1244081312562_01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 04_webasset_400

Above may fail if you have directories with non-unique starting numbers so that "$NR"* evaluates to multiple dirs.
This User Gave Thanks to RudiC For This Post:
nezabudka
# 10  
Old 03-03-2020
Rudi,
Fantastic!
It works like a charm.
Would you mind explaining the code for my learning?

Thanks soooooo much!
# 11  
Old 03-03-2020
After changing directory to "files2folders", the for loop runs across all .jpg files. The "number suffixes" are extracted by means of two shell's "Parameter Expansion / Remove matching prefix (suffix) pattern" (man bash), then the mv command is constructed using the FN and NR variables, relying on the assumption that there will be only ONE matching directory.
This User Gave Thanks to RudiC For This Post:
SonnyClark
# 12  
Old 03-03-2020
Hi
And if we assume that there are more files than directories
Code:
touch files2folders/1244081312563_04.jpg
cd files2folders
find *[1-4]00 -prune -type d -exec bash -c 'echo mv *_${0/%_*/.jpg} $0' {} \;

mv 1244081312562_01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 1244081312563_04.jpg 04_webasset_400

or
Bring them back
Code:
find *[1-4]00 -prune -type d -exec bash -c 'mv $0/*.jpg ./' {} \;

Code:
#!/bin/bash
cd files2folders
for FN in *[1-4]00; do
        echo mv *_${FN/%_*}.jpg $FN
done

mv 1244081312562_01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 1244081312563_04.jpg 04_webasset_400

# 13  
Old 03-03-2020
Quote:
Originally Posted by nezabudka
Hi
And if we assume that there are more files than directories
Code:
touch files2folders/1244081312563_04.jpg
cd files2folders
find *[1-4]00 -prune -type d -exec bash -c 'echo mv *_${0/%_*/.jpg} $0' {} \;

mv 1244081312562_01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 1244081312563_04.jpg 04_webasset_400

or
Bring them back
Code:
find *[1-4]00 -prune -type d -exec bash -c 'mv $0/*.jpg ./' {} \;

Code:
#!/bin/bash
cd files2folders
for FN in *[1-4]00; do
        echo mv *_${FN/%_*}.jpg $FN
done

mv 1244081312562_01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 1244081312563_04.jpg 04_webasset_400

Thank you nezabudka,
I can't wait to try that.
Question, what if there is a letter code preceding the suffix on the filename like filename_wa01.jpg? would i ruin the code if i added the "wa" to the string? Sorry i am newbie...
# 14  
Old 03-04-2020
Quote:
Originally Posted by SonnyClark
Question, what if there is a letter code preceding the suffix on the filename like filename_wa01.jpg?
Code:
touch filename_wa01.jpg

patterns should change to the following
Code:
find *[1-4]00 -prune -type d -exec bash -c 'echo mv *[!0-9]${0/%_*/.jpg} $0' {} \;

and
Code:
for FN in *[1-4]00; do
	echo mv *[!0-9]${FN/%_*}.jpg $FN
done

Code:
mv 1244081312562_01.jpg filename_wa01.jpg 01_webasset_100
mv 1244081312562_02.jpg 02_webasset_200
mv 1244081312562_03.jpg 03_webasset_300
mv 1244081312562_04.jpg 1244081312563_04.jpg 04_webasset_400

Last edited by nezabudka; 03-04-2020 at 03:24 AM..
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