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Question:
I need to find a line in a file that starts with an <strong>a</strong> and the last word in the line ends with an <strong>e</strong>.
How can I do it with a tool like grep?
Just say this:
grep '^a.*e$' file
This means: look for those lines starting (^) with a, then 0 or more characters and finally and e at the end of the line ($).
$ cat a
hello
and thisfinishes with e
foo
$ grep '^a.*e$' a
and thisfinishes with e
Answer2:Simple answer : use grep.
grep -E "^a.*e$" filename
the ^ indicates the beggining of the line
the $ marks the end of the line
the .* means any character (the .) repeated from zero to any number of times (the *).
Many topics have already answered this questions, like <a href="https://stackoverflow.com/questions/4800214/grep-for-beginning-and-end-of-line" rel="nofollow">this one</a>.
If you want to know more of searching, you could look more in depth into <a href="https://www.gnu.org/software/findutils/manual/html_node/find_html/grep-regular-expression-syntax.html" rel="nofollow">REGEX</a>.
