Using Common find Commands and Syntax to Find a File in Linuxįind expressions take the following form: find options starting/path expression The following example searches for *.err files in the /home/username/ directory and all sub-directories: find /home/username/ -name "*.err" Use find from the command line to locate a specific file by name or extension. Find a File in Linux by Name or Extension By using the -exec flag ( find -exec), matches, which can be files, directories, symbolic links, system devices, etc., can be found and immediately You can use the find command to search for a file or directory on your file system. The find command in Linux is used to find a file (or files) by recursively filtering objects in the file system based on a simple conditional mechanism. This article covers the basics of how to find a file in Linux using the CLI. This is especially true if you are running Linux without a graphical user interface and need to rely on the command line. Although not the case here, assume that filenames can contain shell special characters like space, semicolon, newline, etc.When you have to find a file in Linux, it’s sometimes not as easy as finding a file in another operating system. sh $ grep # add your solution hereį) List all files containing whole words awk and perl but not basename. $ grep # add your solution hereĮ) List all files containing Hello unless the filename ends with. no recursive searching) and count the total number of occurrences of whole words grep or sed or awk. $ grep # add your solution hereĮxercises/GNU_grep/ex12_regex_character_class_part1/sample_words.txtĮxercises/GNU_grep/ex16_misc_and_extras/sample.txtĮxercises/GNU_grep/ex08_search_pattern_from_file.txtĭ) Search files ending with. txt but do not search hidden directories. $ grep # add your solution hereĬ) List all files containing baz if the filename ends with. $ # assumes 'exercises' as CWDĪ) List all files containing xargs or python3 $ grep # add your solution hereĮxercises/GNU_grep/ex07_recursive_search/progs/hello.pyī) List all files containing grep but do not list if they are from. All the exercises will assume recursive searching, unless otherwise specified. Exercisesįor sample directory, a particular version of one of my GitHub repo is used. Tools like ack, ag and ripgrep provide a default recursive search behavior, with out-of-box features like ignoring hidden files, respecting. Some cases may require falling back to shell globs or find or even a combination of these methods. Having recursive options when there is already find command seems unnecessary, but in my opinion, these options are highly convenient. $ grep -rlZ 'in' | xargs -0 grep -lZ 'or' | xargs -0 grep -l 'at' $ # note the use of -Z for the middle command $ # files containing 'in' and 'or' and 'at' Wc: spaces.txt: No such file or directoryĮxample for matching more than one search string anywhere in file: $ # files containing 'in' $ echo 'how dare you!' > 'filename with spaces.txt' $ # show all matching lines with digit characters $ # no need to specify path(s) if searching CWD r and -R will work as if -H option was specified as well, even if there is only one file found during recursive search. Read all files under each directory, recursively. This is equivalent to the -d recurse option. That if no file operand is given, grep searches the workingĭirectory. Symbolic links only if they are on the command line. Read all files under each directory, recursively, following $ # final directory structure including hidden files and links $ printf "import math\n\nprint(math.pi)\n" > scripts/pi.py $ echo 'yrneaolrknzcyr 86960' > scripts/.key $ # create sub-directory, two scripts and another hidden file $ printf 'hide\nobscure\nconceal\ncover\nblot\nshield' > patterns.txt Finally, there is a section to show how to pass file list output from grep to other commands.įor sample files and directories used in this chapter, go to example_files directory and follow the steps given below: $ # create directory for this chapter and cd into it Shell globs and find command are also discussed to show alternate methods. This chapter will cover recursive search options and ways to filter the files to be searched.
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