Man find name regex
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FreeBSD Manual Pages
The Linux find command is very powerful. It can search the entire filesystem to find files and directories according to the search criteria you specify. Besides using the find command to locate files, you can also use it to execute other Linux commands grep , mv , rm , etc. If you just want to see some examples and skip the reading, here are a little more than thirty find command examples to get you started. Almost every command is followed by a short description to explain the command; others are described more fully at the URLs shown:.
If you know of any more good find commands to share, please leave a note in the Comments section below. If it finds the file, it prints the location to the screen. On Linux systems and modern Unix system you no longer need the -print option at the end of the find command, so you can issue it like this:. The -type f option here tells the find command to return only files.
If you don't care about that, just leave the -type f option off your command. To search in the current directory — and all subdirectories — just use the. The filename can end with any other combination of characters. It will match filenames such as Chapter , Chapter1 , Chapter1. These file locations are then printed to the screen:. Every option you just saw for finding files can also be used on directories. Just replace the -f option with a -d option.
For instance, to find all directories named build under the current directory, use this command:. To find all files that don't match a filename pattern, use the -not argument of the find command, like this:.
This next command shows how to find all files beneath the current directory that end with the extension. The -l argument to the grep command tells it to just print the name of the file where a match is found, instead of printing all the matches themselves:. Those last few characters are required any time you want to exec a command on the files that are found.
I find it helpful to think of them as a placeholder for each file that is found. This next example is similar, but here I use the -i argument to the grep command, telling it to ignore the case of the characters string , so it will find files that contain string , String , STRING , etc. When these files are found, their permission is changed to mode rw-r--r This find command searches through the htdocs and cgi-bin directories for files that end with the extension.
When these files are found, their permission is changed to mode rwxr-xr-x. This example shows that the find command can easily search through multiple sub-directories htdocs , cgi-bin at one time:. From time to time I run the find command with the ls command so I can get detailed information about files the find command locates.
That's nice, but what if I want to see the last modification time of these files, or their filesize? No problem, I just add the ls -ld command to my find command, like this:. The "-l" flag of the ls command tells ls to give me a "long listing" of each file, while the -d flag is extremely useful in this case; it tells ls to give me the same output for a directory. Normally if you use the ls command on a directory, ls will list the contents of the directory, but if you use the -d option, you'll get one line of information, as shown above.
Be very careful with these next two commands. If you type them in wrong, or make the wrong assumptions about what you're searching for, you can delete a lot of files very fast. Make sure you have backups and all that, you have been warned. Here's how to find all files beneath the current directory that begin with the letters 'Foo' and delete them.
This one is even more dangerous. It finds all directories named CVS, and deletes them and their contents. Just like the previous command, be very careful with this command, it is dangerous! For example, if you want to search for all files and directories named foo , FOO , or any other combination of uppercase and lowercase characters beneath the current directory, use this command:. To find all files and directories that have been modified in the last seven days, use this find command:.
The locate command keeps filenames in a database, and can find them very fast. For more details on the find command, check out our online version of the find man page.
By Alvin Alexander. Last updated: October 18, The remaining sections on this page describe more fully the commands just shown. For instance, to find all directories named build under the current directory, use this command: find. The -l argument to the grep command tells it to just print the name of the file where a match is found, instead of printing all the matches themselves: find.
No problem, I just add the ls -ld command to my find command, like this: find. Find and delete Be very careful with these next two commands. Linux: Case-insensitive file searching with locate and find. Linux grep command man page. Mill build tool: How to declare multiple managed library dependencies. Nurses in Denver, Colorado, blocking anti-lockdown protests.
UNIX for Dummies Questions & Answers
While trying to remember where I put it I realized I was going to have to do some case-insensitive file searching. I was happy to learn that both of my favorite Unix and Linux file-finding utilities support case-insensitive file searching. Both the find command and the locate command have command-line options that provide this support. It's easy to perform a case-insensitive file search with the Linux locate command: just add the -i flag. To search my entire filesystem for files and directories that contain the string typeahead , just use this command:.
Keep up to date with the coolest technology news, analysis and reviews from industry experts. We will not share your email address. Take, the Unix command-line tool, for example. They are grouped by search term, for example, file name, time related information, permission, ownership etc. The next example is a bit academic, but it is another illustration of shell patterns usage.
Pattern Matching In Bash
Get the latest tutorials on SysAdmin and open source topics. Write for DigitalOcean You get paid, we donate to tech non-profits. DigitalOcean Meetups Find and meet other developers in your city. Become an author. One of the most useful and versatile commands in a Linux terminal environment is the "grep" command. The name "grep" stands for "global regular expression print". This means that grep can be used to see if the input it receives matches a specified pattern. This seemingly trivial program is extremely powerful when used correctly. Its ability to sort input based on complex rules makes it a popular link in many command chains. We will explore some options and then dive into using regular expressions.
Things You May or May Not Know About Linux “find” Command
For examples of how to use this command, see Examples. All findstr command-line options must precede Strings and FileName in the command string. Regular expressions use both literal characters and metacharacters to find patterns of text, rather than exact strings of characters. A literal character is a character that does not have a special meaning in the regular-expression syntax—it matches an occurrence of that character.
Use grep to select lines from text files that match simple patterns. Use find to find files and directories whose names match simple patterns. It is also the name of a very useful command-line program.
Want to link to this manual page? Skip site navigation 1 Skip section navigation 2 Header And Logo. Peripheral Links. Donate to FreeBSD. The options are as follows: -E Interpret regular expressions followed by -regex and -iregex pri- maries as extended modern regular expressions rather than basic regular expressions BRE's. If the referenced file does not exist, the file information and type will be for the link itself.
find(1) - Linux man page
Search a folder hierarchy for filename s that meet a desired criteria: Name, Size, File Type - see examples. GNU find searches the directory tree rooted at each given file name by evaluating the given expression from left to right, according to the rules of precedence see Operators , until the outcome is known the left hand side is false for AND operations, true for OR , at which point find moves on to the next file name. The -H, -L and -P options control the treatment of symbolic links. That argument and any following arguments are taken to be the expression describing what is to be searched for. If no paths are given, the current directory is used. If no expression is given, the expression '-print' is used but you should probably consider using '-print0' instead, anyway. This manual page talks about 'options' within the expression list. These options control the behaviour of find but are specified immediately after the last path name.
The find command recursively searches the directory tree for each specified Path parameter, seeking files that match a Boolean expression. The Boolean expression is written by using the terms that are provided in the following text. When the find command is recursively descending directory structures, it does not descend into directories that are symbolically linked into the current hierarchy. The output from the find command depends on the terms that are specified by the Expression parameter.
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