Now let's see this in action. For example we only would like to search for a specific text/string within configuration files with extension .conf.The next example will find all files with extension .conf within /etc directory containing string bash: Recursively Search all Files for a String in Linux. Directory is /fruit containing 10 fruit file names. The grep command proves very wieldy and can fetch results lightning quick. This solution meets my expectation. 2. grep -r name . However, there are several command line tools/utilities for locating files in Linux. I also find useful invoking grep with -nH, so that it also shows the file and the line that contains the pattern. Therefore it is a utility for file hierarchy, where not only the user can leverage it to find data but also perform successive operations on it. -type f -name “*.c” -print \ You probably already know how to use the grep command to search for a text string in a file on Linux. Recoll is an open-source full-text search system created for Unix/Linux users to make a full-text search using a GUI. The two commands are the find command and the locate command. By default, grep displays the matching lines, and it may be used to search for lines of text matching one/many regular expressions in a fuss-free, and it outputs only the matching lines. If you want to learn more, run man find. Syntax Using find command, we can also easily find files bigger or smaller than given size. We learned two command line methods to accomplish the task, but even more exist. Prerequisites. How to list top 10 files in Linux Ubuntu. $ grep --color=auto -iRnH 'getChar();' *.c It can be used to find files and directories and perform subsequent operations on them. grep name . How to search a directory tree for all files containing specific text string on Linux using the command line. Example. The commands used are mainly grep and find. Using the find command to search for files containing the text string Once again, add -i to the grep portion of the command to ignore case. Find a file by name: this one is probably the most used. The typical syntax to find files based on their permissions is: $ find -perm mode The MODE can be either with numeric or octal permission (like 777, 666.. etc) or symbolic permission (like u=x, a=r+x). It searches recursively by default. I will check it out ack and will update faq with it. # ls -l /fruit | grep orange, apple, banana, rwxr–r– 1 root root 392 Mar 24 2009 orange -name ‘*.x’ -print0 | xargs -0 grep fred. But what a bout PDF files? A few points: I recommend reading this detailed tutorial on using cat command.The problem with cat command is that it displays the text on the screen. The grep command or egrep command searches the given input FILEs for lines containing a match or a text string. How to find a string in files in linux Ubuntu. Use find to search for a file or directory on your file system. find /somelocation/log_output -type f -ctime +40 -exec ls -l {} \; Looking command to list out specified files out of a directory. To learn about the rest of the grep command's functions in detail, check out our introduction to grep guide. Use the 'find' Command to Locate a File in Linux . How to search a directory tree for all files containing specific text string on Linux using the command line. Use whichever one you prefer. Finding a file in a Linux system can be difficult if you don't know how. In other way, I don´t grasp the difference between: To search for files based on their type, use the -type option and one of the following descriptors to specify the file type: f: a … Basically everything in Linux is a file. 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