Created SC2043 (markdown)

SC2043.md

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+## This loop will only run once, with var=value
+
+### Problematic code:
+
+    for var in value
+    do
+      echo "$var"
+    done
+
+### Correct code:
+
+Correct code depends on what you want to do. 
+
+To iterate over files in a directory, instead of `for var in /my/dir` use:
+
+    for var in /my/dir/* ; do echo "$var"; done
+
+To iterate over lines in a file or command output, use a while read loop instead:
+
+    mycommand | while IFS= read -r line; do echo "$line"; done
+
+To iterate over *words* written to a command or function's stdout, instead of `for var in myfunction`, use
+
+    for var in $(myfunction); do echo "$var"; done
+
+To iterate over *words* in a variable, instead of  `for var in myvariable`, use
+
+    for var in $myvariable; do echo "$var"; done
+
+
+
+### Rationale:
+
+ShellCheck has detected that your for loop iterates over a single, constant value. This is most likely a bug in your code, caused by you not expanding the value in the way you want.
+
+### Contraindications
+
+None.