![]() Parameter and specifies that the string in the pattern isn't interpreted as a regular expression. Specifies that the case must match only the upper-case pattern. Select-String uses the Pattern parameter to specify HELLO. The text strings Hello and HELLO are sent down the pipeline to the Select-String cmdlet. 'Hello', 'HELLO' | Select-String -Pattern 'HELLO' -CaseSensitive -SimpleMatch This example does a case-sensitive match of the text that was sent down the pipeline to the Examples Example 1: Find a case-sensitive match If the file has no BOM, it assumes the encoding is UTF8. ![]() Select-String uses the byte-order-mark (BOM) toĭetect the encoding format of the file. When you're searching files of Unicode text. You can also specify that Select-String should expect a particular character encoding, such as Select-String can be used to display all text that doesn't match the specified pattern. Select-String can display all the text matches or stop after the first match in each input file. You can direct Select-String to find multiple matches per line, display textīefore and after the match, or display a Boolean value (True or False) that indicates whether a ![]() Line and, for each match, it displays the file name, line number, and all text in the lineĬontaining the match. By default, Select-String finds the first match in each You can use Select-String similar to grep in UNIX or findstr.exe in The Select-String cmdlet uses regular expression matching to search for text patterns in input Pactl list sink-inputs | grep -B 20 'application.name = "gmediarender"' | grep -oP '(?<=Sink Input #).*')Īn easy way to find how many lines before the matched string there are is to paste the output of just the grep -B command into gedit (you can use CTRL+SHIFT+C to copy highlighted text from the terminal, or right-click and copy), and read the amount of lines there - it will appear in the lower right corner of gedit's window as "Ln".Finds text in strings and files. ![]() "grep -oP", finds the matching string and prints everything after it until it reaches the end of the current line, while excluding the matching string.Įxample command I used to find the Sink Input of a gmediarender sink: Here's the template combination command that outputs only a specific string that's located specified number of lines before the specified string in the first "grep -B" pipe (replace the text between the " parameter prints all the contents for a desired number of lines that appear before the matching string, including the line matched, while cutting off everything that appears after the desired number of lines is reached - use "grep -A" if the desired value appears after the matching string. The command in the first pipe uses grep to print out all the text that appears a specified number of lines before the matching string, and an additional pipe operator makes grep to output the exact text after the matching string, ignoring the exact text that appears before or after the targeted string, further narrowing down the output. You'll have to use two grep commands, using the pipe "|" operator. This may help you with finding an exact string before and after matching strings in a command. Print num lines of leading and trailing output context. Print num lines of leading context before matching lines. Print num lines of trailing context after matching lines. Line 5 exact matching lines and 2 lines before and after grep -C 2 my_regex out Line exact matching lines and 2 lines before grep -B 2 my_regex out Line 5 exact matching lines and 2 lines after grep -A 2 my_regex out If you need to print 10 lines of leading context before matching lines, grep -i "my_regex" -B 10Īnd if you need to print 10 lines of leading and trailing output context. This prints 10 lines of trailing context after matching lines grep -i "my_regex" -A 10
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