langs a-z

Task/Here-document/UNIX-Shell/here-document-1.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+cat << ANARBITRARYTOKEN
+The river was deep but I swam it, Janet.
+The future is ours so let's plan it, Janet.
+So please don't tell me to can it, Janet.
+I've one thing to say and that's ...
+Dammit. Janet, I love you.
+ANARBITRARYTOKEN

Task/Here-document/UNIX-Shell/here-document-2.sh

@@ -0,0 +1,6 @@
+cat << EOF
+Here documents do parameter and command substitution:
+ * Your HOME is $HOME
+ * 2 + 2 is `expr 2 + 2`
+ * Backslash quotes a literal \$, \` or \\
+EOF

Task/Here-document/UNIX-Shell/here-document-3.sh

@@ -0,0 +1,5 @@
+if true; then
+	cat <<- EOF
+	The <<- variant deletes any tabs from start of each line.
+	EOF
+fi

Task/Here-document/UNIX-Shell/here-document-4.sh

@@ -0,0 +1,6 @@
+cat << 'TOKEN'
+If TOKEN has any quoted characters (like 'TOKEN', "TOKEN" or \TOKEN),
+then all $ ` \ in the here document are literal characters.
+
+$PATH \$PATH `shutdown now`
+TOKEN

Task/Here-document/UNIX-Shell/here-document-5.sh

@@ -0,0 +1,9 @@
+#!/bin/csh -f
+cat << ANARBITRARYTOKEN
+ * Your HOME is $HOME
+ * 2 + 2 is `@ n = 2 + 2; echo \$n`
+ANARBITRARYTOKEN
+
+cat << 'ANARBITRARYTOKEN'
+$PATH \$PATH `shutdown now`
+'ANARBITRARYTOKEN'