Merge pull request #8125 from eugenp/revert-8119-BAEL-3275-2

Revert "BAEL-3275: Using blocking queue for pub-sub"

linux-bash/loops/README.md

@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Linux Commands – Looping Through Directories](https://www.baeldung.com/linux/loop-directories)

linux-bash/loops/src/main/bash/find_directories.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+find . -maxdepth 1 -mindepth 1 -type d -printf '%f\n'
+
+find . -maxdepth 1 -mindepth 1 -type d | while read dir; do
+  echo "$dir"
+done
+
+find . -maxdepth 1 -type d -exec echo {} \;

linux-bash/loops/src/main/bash/loop_directories.sh

@@ -0,0 +1,11 @@
+#!/bin/bash
+
+for dir in */; do
+    echo "$dir"
+done
+
+for file in *; do
+    if [ -d "$file" ]; then
+        echo "$file"
+    fi
+done

linux-bash/text/README.md

@@ -0,0 +1,3 @@
+### Relevant Articles:
+
+- [Linux Commands – Remove All Text After X](https://www.baeldung.com/linux/remove-text-after-x-in-file)

linux-bash/text/src/main/bash/remove_characters.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+my_var="Hola Mundo"
+echo ${my_var}
+
+my_filename="interesting-text-file.txt"
+echo ${my_filename:0:21}
+
+echo ${my_filename%.*}
+
+complicated_filename="hello-world.tar.gz"
+echo ${complicated_filename%%.*}
+
+echo ${my_filename/.*/}
+
+echo 'interesting-text-file.txt' | sed 's/.txt*//'
+
+echo 'interesting-text-file.txt' | cut -f1 -d"."
+echo ${complicated_filename} | cut -f1 -d"."