bash: Comments

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1 3.1.3 Comments
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1 In a non-interactive shell, or an interactive shell in which the
11 'interactive_comments' option to the 'shopt' builtin is enabled (⇒
 The Shopt Builtin), a word beginning with '#' causes that word and all
1 remaining characters on that line to be ignored.  An interactive shell
1 without the 'interactive_comments' option enabled does not allow
1 comments.  The 'interactive_comments' option is on by default in
1 interactive shells.  ⇒Interactive Shells, for a description of
1 what makes a shell interactive.
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