Take a list of files such as:
/home/me/specialfiles/group01subgroup01.xyz /home/me/specialfiles/group01subgroup01.abc /home/me/specialfiles/group01subgroup01.nop /home/me/specialfiles/group01subgroup02.xyz /home/me/specialfiles/group01subgroup02.abc /home/me/specialfiles/group01subgroup02.nop /home/me/specialfiles/group01subgroup03.xyz /home/me/specialfiles/group01subgroup03.abc /home/me/specialfiles/group01subgroup03.nop /home/me/specialfiles/group01subgroup04.xyz /home/me/specialfiles/group01subgroup04.abc /home/me/specialfiles/group01subgroup04.nop
I would like to rename these files and add some formatting similar to this:
me@mymachine:~/specialfiles$ rename 's/group(dd)subgroup(dd).(xyz|abc|nop)/Group$1SubGroup$2.$3/' *
This would end up with the list of files looking like
/home/me/specialfiles/Group01SubGroup01.xyz /home/me/specialfiles/Group01SubGroup01.abc /home/me/specialfiles/Group01SubGroup01.nop /home/me/specialfiles/Group01SubGroup02.xyz /home/me/specialfiles/Group01SubGroup02.abc /home/me/specialfiles/Group01SubGroup02.nop /home/me/specialfiles/Group01SubGroup03.xyz /home/me/specialfiles/Group01SubGroup03.abc /home/me/specialfiles/Group01SubGroup03.nop /home/me/specialfiles/Group01SubGroup04.xyz /home/me/specialfiles/Group01SubGroup04.abc /home/me/specialfiles/Group01SubGroup04.nop
Up to here, this all works fine. The next step, and my real question is, how can I create a directory for each SubGroup in this process using the SubGroup name for the directory?
For example, my first guess was to do something like this
me@mymachine:~/specialfiles$ rename 's/group(dd)subgroup(dd).(xyz|abc|nop)/Group$1SubGroup$2/Group$1SubGroup$2.$3/' *
The intent of this would be to rename the files to look something like this
/home/me/specialfiles/Group01SubGroup01/Group01SubGroup01.xyz /home/me/specialfiles/Group01SubGroup01/Group01SubGroup01.abc /home/me/specialfiles/Group01SubGroup01/Group01SubGroup01.nop /home/me/specialfiles/Group01SubGroup02/Group01SubGroup02.xyz /home/me/specialfiles/Group01SubGroup02/Group01SubGroup02.abc /home/me/specialfiles/Group01SubGroup02/Group01SubGroup02.nop /home/me/specialfiles/Group01SubGroup03/Group01SubGroup03.xyz /home/me/specialfiles/Group01SubGroup03/Group01SubGroup03.abc /home/me/specialfiles/Group01SubGroup03/Group01SubGroup03.nop /home/me/specialfiles/Group01SubGroup04/Group01SubGroup04.xyz /home/me/specialfiles/Group01SubGroup04/Group01SubGroup04.abc /home/me/specialfiles/Group01SubGroup04/Group01SubGroup04.nop
However, I end up with a message like
Can't rename Group01SubGroup01.xyz Group01SubGroup01/Group01SubGroup01.xyz: No such file or directory
It seems the problem is that the directory Group01SubGroup01 needs to already exist for this to complete successfully. Any ideas on how I can somehow use regular expression search and replace syntax to create directories if they don’t already exist?
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Answer
cd /home/me/specialfiles/ find ./ -maxdepth 1 -name "Group*" | xargs -i basename {} | while read filename; do _dir=${filename%.*}; mkdir -p $_dir; mv $filename $_dir; done