Question

Write a Bash script that searches all .c files in the current directory (and its subdirectories, recursively) for occurrences of the word "foobar". Your search should be case-sensitive (that applies both to filenames and the word "foobar"). Note that an occurrence of "foobar" only counts as a word if it is either at the beginning of the line or preceded by a non-word-constituent character, or, similarly, if it is either at the end of the line or followed by a non-word- constituent character. Word-constituent characters are letters, digits and underscores.

Answer 1

grep -R '^foobar'.c > variable && grep -R 'foobar$'.c >> variable

echo $variable | ls -n .

Step-by-step explanation:

Bash scripting is a language used in unix and linux operating systems to interact and automate processes and manage files and packages in the system. It is an open source scripting language that has locations for several commands like echo, ls, man etc, and globbing characters.

The above statement stores and appends data of a search pattern to an already existing local variable and list them numerically as standard out 'STDOUT'.