Bash: set name of directory as a variable while looping - bash

Question

I have a directory containing a big number of sub-directories within.
I need to loop over all subdiretories and save it names (without a path!) as a distinct variable
for d in ${output}/*/
do
dir_name=${d%*/}
echo ${dir_name}
done
the problem of the current version that it gives me a full path of the directory instead. Here is the result of echo
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig992
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig993
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig994
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig995
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig996
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig997
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig998
/Users/gleb/Desktop/DOcking/clusterizator/sub_folders_to_analyse/7000_CNE_lig999

Answer 1

With the dir_name=${d%*/}, you remove the trailing / only. You will want to remove everything upto the last / as well. Or try basename, which is perhapse a better option.
As in:
for d in /var/*/ ; do
dir_name=${d%/}
base=$(basename "$d")
echo "$d $dir_name ${dir_name##*/} $base"
done
which produces:
/var/adm/ /var/adm adm adm
/var/cache/ /var/cache cache cache
/var/db/ /var/db db db
/var/empty/ /var/empty empty empty
/var/games/ /var/games games games
/var/heimdal/ /var/heimdal heimdal heimdal
/var/kerberos/ /var/kerberos kerberos kerberos
/var/lib/ /var/lib lib lib
/var/lock/ /var/lock lock lock
/var/log/ /var/log log log
/var/mail/ /var/mail mail mail
/var/man/ /var/man man man
/var/named/ /var/named named named
/var/netatalk/ /var/netatalk netatalk netatalk
/var/run/ /var/run run run
/var/slapt-get/ /var/slapt-get slapt-get slapt-get
/var/spool/ /var/spool spool spool
/var/state/ /var/state state state
/var/tmp/ /var/tmp tmp tmp
/var/www/ /var/www www www
/var/yp/ /var/yp yp yp
(on my system).

Answer 2

Can you cd to that parent directory?
cd ${output}/
lst=( */ )
for d in "${lst[#]}"; do echo "${d*/}"; done
If that's not an option, then you can strip it each time.
lst=( ${output}/*/ )
for d in "${lst[#]}"; do dir="${d*/}"; echo "${dir##/}"; done
As a hybrid, you can sometimes use a trick of changing directory inside a subshell, as the cd is local to the subshell and "goes away" when it ends, but so do any assignments.
cd /tmp
( cd ${output}/; lst=( */ ); for d in "${lst[#]}"; do echo "${d*/}"; done )
# in /tmp here, lst array does not exist any more...