[Linux](Command)basename - strip directory and suffix from filenames

Purpose

Print NAME with any leading directory components removed. If specified, also remove a trailing SUFFIX.

suffix

remove a trailing suffix

option: -s

# without -s 
root@jv0540 [/data/gitlab/backups]basename /data/gitlab/backups/1620209195_2021_05_05_13.2.0_gitlab_backup.tar
1620209195_2021_05_05_13.2.0_gitlab_backup.tar

# with -s
root@jv0540 [/data/gitlab/backups]basename -s "_gitlab_backup.tar" /data/gitlab/backups/1620209195_2021_05_05_13.2.0_gitlab_backup.tar
1620209195_2021_05_05_13.2.0

root@jv0540 [/data/gitlab/backups]basename -s "_gitlab_backup.tar" /data/gitlab/backups/*gitlab_backup.tar
1620209195_2021_05_03_13.2.0
1620209195_2021_05_05_13.2.0

multiple

options: -a

root@jv0540 [~/scripts]basename -a ~/scripts/*.txt
test1.txt
test2.txt
test3.txt

root@jv0540 [~/scripts]basename -a ~/scripts/test1.txt ~/scripts/test2.txt
test1.txt
test2.txt