Tip: use a regexp so the grep is not matching the line where is sits in ps list:
ps -aef | grep "[m]atchingexp" will match anything starting with letter ‘m’ and followed by ‘
atchingexp‘ , which will not be in the ps list as it will contain the  around the first letter of your match
grep -color is not producing color symbols if it detects that the output is not a terminal.
grep -color=auto is doing the same, that is not producing color symbols if it detects that the output is not a terminal.
The solution is to use “grep -color=always“ in the place that need it.
Do not put it in an alias of grep as it would break some code somewhere else. Color symbols are strings like “ESC[35m” and they will be inserted in the text.
In case you’re trying to search recursively for a specific file type and data mask, grep -r is not enough to bring the desired result.
You’ll have to use –include ‘type’ and then, even if the directory does not contain any of the given filetype in root, it’s still working.
grep -r --include '*.extension' 'Text to match' directory
grep -r --include '*.cpp' 'Audio' .