Error: bash: $: command not found
If you see this error, the most probable reason is, you have copy-pasted an example command-line snippet starting with the $ character in it.
Let us see an error sample:
Note: the actual command typed is "ls" and not "$ ls"
[admin@devopsrun1 source]$ $ ls
-bash: $: command not found
Example of correct usage
Now, look at this correct use:
[admin@devopsrun1 source]$ ls
file1.txt file2.txt file3.txt file4.txt file5.txt file6.txt file7.txt file8.txt file9.txt