Suppose I have the following text file called
hello HELLO Hello World wOrld asdgfsafd abc 123 1 3 5 a b
and I want to print out the lines containing only one word(any sequence with uppercase/lower case letters), regardless if there are spaces before or after the character, using egrep and regex.
so the output should look like this:
hello HELLO wOrld asdgfsafd
The best regex I came up was
egrep ' *[a-zA-Z] *$' inputFile
but it does't seem to work. Any suggestions?