![]() ![]() The awk/ sed/ perl ones don't reflect whether any line matched the patterns in their exit status. The grep command, which stands for 'global regular expression print,' is one of Linuxs most powerful and widely used commands. Please beware that all those will have different regular expression syntaxes. ![]() Or perl: perl -ne 'print if /pattern1/ & /pattern2/' Or with sed: sed -e '/pattern1/!d' -e '/pattern2/!d' ![]() The best portable way is probably with awk as already mentioned: awk '/pattern1/ & /pattern2/' If the patterns don't overlap, you may also be able to do: grep -e 'pattern1.*pattern2' -e 'pattern2.*pattern1' Grep includes a number of options that control its behavior. The items in square brackets are optional. *s as & matches strings that match both and exactly, a&b would never match as there's no such string that can be both a and b at the same time). The syntax for the grep command is as follows: grep OPTIONS PATTERN FILE. With ast grep: grep -X '.*pattern1.*&.*pattern2.*' With GNU grep, when built with PCRE support, you can do: grep -P '^(?=.*pattern1)(?=.*pattern2)' no-index Search files in the current directory that is not managed by Git. The above command will print lines matching all the patterns at once. input record is read and processing starts over. Here is the syntax using git grep combining multiple patterns using Boolean expressions: git grep -no-index -e pattern1 -and -e pattern2 -and -e pattern3. it doesnt replaces the system grep (you need to put the installed grep before the system one on the PATH). In the simplest terms, grep (global regular expression print) will search input files for a search. brew install grep Then its available as ggrep (GNU grep). Next, we searched the column name in the output using the grep command, and truncated the preceding spaces using the tr command. If your input is in sam format check XS:i: it will only be present if the SAM record is for an aligned read and more than one alignment was found for the read.Subsequently, we processed the remaining file in the while loop. To find the lines that match each and everyone of a list of patterns, agrep (the original one, now shipped with glimpse, not the unrelated one in the TRE regexp library) can do it with this syntax: agrep 'pattern1 pattern2' If your scripts are for your use only, you can install grep from homebrew-core using brew. Then we used the read command to process the header line. ![]()
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