shell - Rename leaf subdirs with names starting in RR -

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i looking rename subdirectories names begin rr , don't have subdirectories of own 'a'

in , if glob wildcard doesn't match print wildcard character itself, e.g. if /somedir/ not have subdirectories, after expansion /somedir/*/ literary equivalent '/somedir/*/'.

so simple bash script find directories without subdirectories , names beginning rr be

#!/bin/bash  shopt -u nullglob  while read -r dir;   [[ $(echo "$dir"/*/) == "$dir/*/" && ${dir##*/} =~ ^'rr' ]] && echo "$dir"  done < <(find . -type d)

should easy interpolate there, not clear want when have multiple directories matching criteria , can't rename them a?

to rename directories rretcetc a, change following

#!/bin/bash  shopt -u nullglob  while read -r dir;   [[ $(echo "$dir"/*/) == "$dir/*/" && ${dir##*/} =~ ^'rr' ]] && mv -v "$dir" "${dir%/*}/a"  done < <(find . -type d)

but again note doesn't take account multiple directories matching ^rr in same directory.


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