zfgrep:tldr:2975a

The command zfgrep --line-number ${search_string} ${filename} is used to search for a specific string within a file and display the line number(s) where the string is found.

Here's a breakdown of each component of the command:

• zfgrep: This is the name of the command being executed. zfgrep stands for "Zawinski's Fast grep" which is a faster version of the grep command commonly used for searching text files.

• --line-number: This option tells zfgrep to display the line number(s) where the search string is found. Without this option, only the matching lines would be displayed without any line numbers.

• ${search_string}: This is a placeholder for the actual string you want to search for in the file. You need to replace ${search_string} with the actual string you want to search.

• ${filename}: This is also a placeholder for the name of the file you want to search within. You need to replace ${filename} with the actual name of the file you want to search.

By running this command and providing the appropriate values for ${search_string} and ${filename}, zfgrep will search for the given string within the specified file and display the line number(s) where the string is found.