Grep All Files In A Directory

• Grep All Files In Directory Recursive
• Grep All Files For String

On this page.1 The GREP command- an overviewThe grep command, which means global regular expression print, remains amongst the most versatile commands in a Linux terminal environment. It happens to be an immensely powerful program that lends users the ability to sort input based on complex rules, thus rendering it a fairly popular link across numerous command chains. The grep command is primarily used to search text or search any given file for lines containing a match to the supplied words/strings. 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. 2 The basic grep command syntaxThe basic grep command syntax is as follows: grep 'word' filenamegrep 'word' file1 file2 file3grep 'string1 string2' filenamecat otherfile grep 'something'command grep 'something'command option1 grep 'data'grep -color 'data' fileName 3 How to use the grep command for searching in a fileIn the first example, I will search for the user 'tom' in the Linux passwd file. To search the /etc/passwd file for the user 'tom', you need to enter the following command. Grep tom /etc/passwdGiven below is the sample Output: tom:x:1000:1000:tom,:/home/tom:/bin/bashYou have the option to instruct grep to ignore word case, i.e., match abc, Abc, ABC and all possible combinations with the -i option as shown below: grep -i 'tom' /etc/passwd 4 Recursive use of grepIf you have a bunch of text files in a directory hierarchy, e.g, the Apache configuration files in /etc/apache2/ and you want to find the file where a specific text is defined, then use the -r option of the grep command to do a recursive search.

@Chris it's possible you don't have.scss files in current directory but somewhere deeper in subdirs so grep does not look in all the files you wanted. You should use -include option to tell grep to look recursively for files that matches specific patterns: grep -r x -include '.scss'.

How to search a directory tree for all files containing specific text string on Linux using the command line. This tutorial will help you to search all files matching a string recursively. This tutorial uses “grep” command to search string in files. Alternatively, You can also also use the to search files with specific string. Syntax grep -rwl “search-string” /path/to/serch/dir 1. Search Single String in All FilesBelow example command will search string “tecadmin” in all files in /var/log directory and its sub-directories.

Grep All Files In Directory Recursive

Grep -rlw 'tecadmin' /var/log/var/log/lfd.log/var/log/cloud-init.log/var/log/messages-20170226/var/log/audit/audit.log.1/var/log/btmp-20170315/var/log/httpd/accesslog-201702262. Search Multiple String in All FilesYou can also specify multiple strings to search using -e switch.

This is similar to egrep command. Below example will search strings “tecadmin” and “https” in all files in /var/log directory and its sub-directories. Grep -rlw -e 'tecadmin' -e 'https' /var/log3. Search String in Specific FilesYou can search string in files matching the file name criteria. Below example command will search string “tecadmin” in files ending with.log extension in /var/log directory and its sub-directories. Grep -rlw -include='.log' -e 'tecadmin' /var/log4. Exclude Some Files from SearchIf you want to exclude some files matching file name criteria.

You can exclude some files using –exclude option in command. For example, do not search file ending with.txt extension. Grep -rlw -exclude='.txt' -e 'tecadmin' /var/log5. Exclude Some Directories from SearchYou can also exclude some directoires to skip search inside it. For example, do not search string files inside any folder having http in their name. Grep -rlw -exclude-dir='.http.'

Grep All Files For String

-e 'tecadmin' /var/logFrequently Uses Command SwitchesBelow is the frequently uses grep command switches. To list all switches details use grep -help command.