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+## Use BASH_ARGV0 to assign to $0 in bash (or use [ ] to compare).
+
+### Problematic code:
+
+```sh
+#!/bin/bash
+$0=myscriptname
+```
+
+### Correct code:
+
+```sh
+#!/bin/bash
+BASH_ARGV0=myscriptname
+```
+
+### Rationale:
+
+You appear to be trying to assign a new value to `$0` in a Bash script. To do this, instead assign to the special variable `BASH_ARGV0`.
+
+If you instead wanted to compare the value of `$0`, use a comparison like `[ "$0" = "myname" ]`.
+
+### Exceptions:
+
+None.
+
+### Related resources:
+
+* Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!
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