From 5a265a0ce6b1793a879bd227fa9b24ebd08fd15c Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pjm@nac.net>
Date: Sun, 01 Apr 2012 03:42:44 -0400
Subject: Move UNIX shell workshop files under guides.

---
(limited to 'shell-workshop/shell.txt')

diff --git a/shell-workshop/shell.txt b/shell-workshop/shell.txt
deleted file mode 100644
index d98d249..0000000
--- a/shell-workshop/shell.txt
+++ /dev/null
@@ -1,131 +0,0 @@
-introduce the shell interpreter
-	POSIX.1-2008 XCU 2.1
-	shell reads input from:
-		a specified file,
-		'-c' option argument, or
-		stdin (interactive mode)
-	shell splits input lines into tokens and parses them
-	shell expands words
-	shell performs I/O redirection
-	shell executes functions, built-in commands, files, etc.
-parameters and variables
-	positional parameters
-		POSIX.1-2008 XCU 2.5.1
-		decimal numbers greater than 0, e.g. $1 and $2
-		multiple-digit numbers should be enclosed in braces
-		assigned with:
-			shell arguments when shell starts
-			function arguments when a function is called
-		can be reassigned using 'set' built-in command
-	special parameters
-		POSIX.1-2008 XCU 2.5.2
-		@
-			all positional parameters
-		*
-			all positional parameters
-		#
-			number of positional parameters
-		?
-			exit status of most recent command pipeline
-		-
-			current option flags
-		$
-			process ID of shell
-		!
-			process ID of most recent background command
-		0
-			name of shell or shell script
-	shell variables
-		POSIX.1-2008 XCU 2.5.3
-		HOME
-			pathname of user's home directory
-		IFS
-			delimiters for field splitting
-			default: <space> <tab> <newline>
-		LINENO
-			line number of current script, if any
-		PATH
-			list of paths which should be searched for commands
-		PS1
-			prompt value to be expanded and written to standard error
-			default value: "$ "
-		PWD
-			absolute pathname of the current working directory
-word expansions
-	tilde expansion
-		POSIX.1-2008 XCU 2.6.1
-		tilde-prefix: unquoted tilde at the beginning of a word
-			followed by all unquoted characters until first unquoted slash
-		login name is all characters in tilde-prefix following tilde
-		if login name is empty (tilde-prefix == "~")
-			expanded to value of HOME
-		else
-			expanded to home directory associated with login name
-	parameter expansion
-		POSIX.1-2008 XCU 2.6.2
-		${expression} or $expression
-		expression:
-			parameter
-			parameter:-word
-			parameter:=word
-			parameter:?word or parameter:?
-			parameter:+word
-			#parameter
-			parameter%word
-			parameter%%word
-			parameter#word
-			parameter##word
-	command substitution
-		POSIX.1-2008 XCU 2.6.3
-		$(command)
-		or
-		`command`
-		expanding:
-			shell executes command in a subshell
-			shell replaces substitution with stdout of the command
-			newlines within command are allowed
-		nesting
-			`command1 \`command2 foo\` bar`
-			$(command1 $(command2 foo) bar)
-	arithmetic expansion
-		POSIX.1-2008 XCU 2.6.4
-		$((expression))
-		expanding:
-			shell processes expression
-			shell replaces substitution with value of the expression
-		arithmetic:
-			signed long integer precision
-			decimal, octal, and hexadecimal constants
-				e.g. 42, 052, 0x2A
-			operators:
-				( ), unary +, unary -, +, -, *, /, %
-				~, !, <<, >>, &, ^, |
-				<, <=, >, >= ==, !=, &&, ||, expr ? expr : expr
-				=, +=, -=, *=, /=, %=, <<=, >>=, &= ^=, |=
-			shell variables
-				if x has an integer value, then the following are equivalent:
-				$((x + 1))  $(($x + 1))
-	field splitting
-		POSIX.1-2008 XCU 2.6.5
-		IFS is a set of delimiters, at which unquoted fields are split
-	pathname expansion
-		POSIX.1-2008 XCU 2.6.6
-		POSIX.1-2008 XCU 2.13
-		performed unless 'set -f' was run
-		patterns
-			? matches any single character
-			* matches multiple (0 or more) characters
-			[ opens RE bracket expansion
-		if pattern does not match any existing files
-			pattern string is left unchanged
-redirection
-	input redirection
-		[n]<word
-		n: optional file descriptor number (default: 0, stdin)
-		word: name of file
-	output redirection
-		[n]>word
-		[n]>|word
-		n default: 1, stdout
-	appending redirected output
-		[n]>>word
--
cgit v0.9.1