diff --git "a/\\" "b/\\"
deleted file mode 100644
index 3ca1f48f8..000000000
--- "a/\\"
+++ /dev/null
@@ -1,44 +0,0 @@
-https://ru.wikipedia.org/wiki/%D0%94%D0%B5%D1%80%D0%B5%D0%B2%D0%BE_%D0%BE%D1%82%D1%80%D0%B5%D0%B7%D0%BA%D0%BE%D0%B2
-https://e-maxx.ru/algo/segment_tree
-http://brestprog.by/topics/segmenttree/
-https://en.algorithmica.org/hpc/data-structures/segment-trees/
-
-samples
-https://codeforces.com/blog/entry/22616
-
-2022
-Mavrin - S02E04 - Two Dimensional Problems on Segment Tree 0:00 of 1:16:55
-    https://www.youtube.com/watch?v=AcV3l10WY60
-Mavrin - S02E02 - Segment Tree Operations of 1:17:58
-    https://www.youtube.com/watch?v=AWnrKIBYdrE
-Mavrin - S02E01 - Segment Tree of 1:19:29
-    https://www.youtube.com/watch?v=wFx6HAfJEnI
-Vansy115 - APO - Segment Tree 0:00 of 1:05:04
-    https://www.youtube.com/watch?v=TrrL8RigkZg
-AlexanderIvanov - Circle - Segment Tree 0:00 of 1:15:58
-    https://www.youtube.com/watch?v=YM6h-ZYRxGI
-2021
-Mavrin - Segment Tree of 1:24:56
-    https://www.youtube.com/watch?v=NAOY3YbaNMk
-TinkofEdu - Segment Tree of 2:40:06
-    https://www.youtube.com/watch?v=kcX732Fo4W8
-2020
-OtusOnlineEdu - SegmentTree 0:00 of 1:31:31
-    https://www.youtube.com/watch?v=99M67y9kLJs
-MIPT - FPMI - Grishutin - Segment Tree
-    https://www.youtube.com/watch?v=SKT572hwGes
-    https://www.youtube.com/watch?v=rmipYqObGG8
-    https://drive.google.com/file/d/1evEyPLk41fB4G4TeBBKZndFlqPin4CbM/view
-LITED - Segment Tree of 1:35:35
-    https://www.youtube.com/watch?v=Hy0dtqQgsgo
-CSC - Mavrin - Segment Tree of 1:19:23
-    https://www.youtube.com/watch?v=bp9D72E55eI
-https://habr.com/ru/companies/otus/articles/485194/
-2019
-https://proglib.io/p/algoritmy-i-struktury-dannyh-na-c-derevya-otrezkov-2019-10-11
-CSC - Novosib - Segment Tree Seminar
-    https://www.youtube.com/watch?v=hgi3kEcOj58
-    https://compscicenter.ru/courses/algorithms-1/nsk/2018-autumn/classes/4378/
-2013
-Intuit - Problems on Trees 0:00 of 1:28:13
-    https://www.youtube.com/watch?v=8v6ylOY4cG0
diff --git a/os/shells/bash/features/bash-source.txt b/os/shells/bash/features/bash-source.txt
new file mode 100644
index 000000000..6871d114d
--- /dev/null
+++ b/os/shells/bash/features/bash-source.txt
@@ -0,0 +1,3 @@
+2021
+https://www.baeldung.com/linux/bash-get-location-within-script
+    BASH_SOURCE