Differences

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--- skill-tree:use:1:1:b [2021/02/08 18:40] – [Background] kunkel
+++ skill-tree:use:1:1:b [2021/09/13 11:57] (current) – external edit 127.0.0.1
@@ Line 6: / Line 6: @@
 The shell provides a textual interface allowing to interact with the operating system and performing all possible operations, i.e., accessing and manipulating files, and running programs.
 However, there are various misconceptions that new users typically face when handling a shell such as the Bash.
-Particularly, special characters and the format expected when executing programs with arguments can be error prone.
+Particularly, dealing with control characters and the format expected when executing programs with arguments can be error-prone.
-Part of this skill is the general principles of the interaction with a shell.
+Part of this skill is the general principles of the interaction with a shell, to execute and to stop programs.
@@ Line 28: / Line 28: @@
     * clear
     * man
+    * vi, vim, emacs, nano
     * exit
   * Utilize the available help of a program (--help argument and the man pages).
@@ Line 36: / Line 37: @@
   * Use the shell history to search and execute previously executed commands.
   * Set and print shell variables.
+  * Print all currently set variables
   * Identify potential special characters that must be handled with care.
+    * List strings that could refer to files/directories
   * Utilize escaping to ensure correct handling of arguments.
   * Understand wildcard characters to select a group of files/directories:
     * *
-    * [,-]
+    * ?
-  * Use text editors.
+    * [-,]
+  * How to close popular command line text editors with/or without saving changes:
+    * nano
+    * vi
+    * emacs
 # Subskills
   * [[skill-tree:use:1:1:i]]