[Single|Double|Or no] Quotes when using grep?
- by Hamy
Grep acts differently depending on what kind of quotes I surround the regex with. I can't seem to get a clear understanding of why this is. Here is an example of the problem:
hamiltont$ grep -e show\( test.txt
variable.show();
variable.show(a);
variable.show(abc, 132);
variableshow();
hamiltont$ grep -e "show\(" test.txt
grep: Unmatched ( or \(
hamiltont$ grep -e 'show\(' test.txt
grep: Unmatched ( or \(
I am just assuming there is some proper way to enclose the regex with single/double quotes. Any help?
FWIW, grep --version returns grep (GNU grep) 2.5.1
