#Grep for multiple strings how to#
For example: last grep -i abc last grep -i uyx I wish the combine the above into one command, but when searching on the internet I can only find references on how to use multiple strings with grep, when grep is used with a file, and not a command. This will help ensure that your search is accurate and efficient. (the file handling bit) (c) 2005, Joel Schopp (the ugly bit) (c) 2007,2008, Andy Whitcroft (new conditions, test suite. grep -i With multiple strings, after using grep on another command. It's always a good idea to carefully review the documentation and use the appropriate syntax when working with regular expressions. This command searches for lines in the file.txt file that contain either word1 or word2 followed by word3.īy using regular expressions or special characters such as | and (), you can search for multiple words or a string pattern using the grep command on Bash.
Hence, if you combine these using a pipe, it will show lines containing both word1 and word2.
For example: grep '(word1|word2) word3' file.txt To grep for 2 words existing on the same line, simply do: grep 'word1' FILE grep 'word2' grep 'word1' FILE will print all lines that have word1 in them from FILE, and then grep 'word2' will print the lines that have word2 in them. Grep for Multiple Patterns in a Specific File Type Grep can be used to search numerous strings within a specific kind of file. You can also use parentheses to group words and use the | symbol as an "or" operator. We can add ' -e ' multiple times with grep so we already have a way with grep to capture multiple strings. Now this pattern can be a string, regex or any thing. The \| symbol acts as an "or" operator, allowing you to specify multiple words to search for. grep multiple strings - syntax By default with grep with have -e argument which is used to grep a particular PATTERN. Here is an example of how to use regular expressions to search for multiple words with grep: grep 'word1\|word2\|word3' file.txt Soruce:This command searches for any lines in the file.txt file that contain the words word1, word2, or word3. To search for multiple words or a string pattern using the grep command on Bash, a Unix shell and command language, you can use regular expressions or special characters such as | and ().
#Grep for multiple strings windows#
windows findstr: Just need to pass the space separator to findstr command and keep the patterns in double quotes. grep multiple strings using awk Say if you are already using the awk command or sed command command, then there is no need to pipe out to grep and feed data from grep. This pattern should be enclosed in double quotes. unix grep: Use -E flag with grep command to pass multiple patterns and delimited by pipe symbol.
Now I have to check for the presence of any of the strings "Added, Changed, Fixed, Deleted" in the message.How To Search Multiple Words / String Pattern Using grep Command on Bash shell For every element of the list, the value is assigned to, the default scalar variable. We can pass the multiple search patterns to the grep and findstr command. Will give me the commit message that the user has entered. In the above code, $SVNLOOK log "$REPOS" -t "$TXN" txt Or put patterns on several lines: grep - 'foo bar'.
You can do this by preceding each pattern with the -e option. "$"Įcho "Your commit has been blocked because you didn't give any log message" 1>&2Įcho "Please write a log message describing the purpose of your changes and" 1>&2Įcho "then try committing again. txt Another possibility when you're just looking for any of several patterns (as opposed to building a complex pattern using disjunction) is to pass multiple patterns to grep. I am writing an svn precommit hook, and the expected commit comment should have one of these 4 strings in the message. grep use symbol to separate two patterns in a command. You can use the symbol to grep multiple strings or patterns. I need to check if any of the strings "Added/Changed/Fixed/Deleted" are in a commit log message. If you want to search multiple patterns or strings in a particular file, use the grep functionality to sort within a file with the help of more than one input word in the command.
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