You can use a grep command to search through files.
The grep command is a powerful tool in Unix and Linux systems that can be used to search for patterns inside files or streams of data. It works by taking a string (called a pattern) and finds lines inside the file that matches that pattern, allowing you to quickly search for relevant data, or even multiple patterns at once.
To search for a file inside another file, you must first make sure you are in the same directory as the files you are searching. Then, use the grep command followed by the pattern you’re looking for. Grep allows you to use regular expressions, which are special strings that give search commands more flexibility. For example, to search for all lines containing the word “test” inside a file named example.txt, you could use the command:
grep test example.txt
This will output all lines that contain the pattern “test” in the file example.txt. You can also use other switches like -w or -i to further refine your search.
Another useful tool to search for a file inside another file is the find command. It searches recursively through the current directory and its subdirectories for the specified name or type of file. So, if you needed to search for all .txt files within the current directory and its subdirectories, you could use this command:
find . -name ‘*.txt’
The preceding command will recursively search for all .txt files within the current directory and its subdirectories. You can also use other switches like -iname to ignore case or -size to search for files of specific sizes.
You can also use tools such as awk or sed to search for a file inside another file. Both awk and sed are powerful tools that allow users to search, modify and perform operations on text files. Awk can search for lines based on certain criteria, while sed can be used to find and replace certain words.
For example, if you wanted to search for all lines containing the word “test” in the file example.txt, you could use the following command with awk:
awk ‘/test/ {print}’ example.txt
This will output all lines within the file example.txt that contain the pattern “test”. Similarly, if you wanted to replace all instances of the word “test” with “example” in the file example.txt, you could use the command:
sed ‘s/test/example/g’ example.txt
There are many other ways to search for a file inside another file, including the use of scripting languages such as Python or Perl. However, the tools described above should provide enough flexibility to search for a file within a file up to 2000 words.