Here the output of the “ps -ef” command is input for the grep command Some more Important Grep commands Pipe command in Linux lets u input the output of one command to the other command. It discarded all the lines having any of these three words from the output of ps -ef ps -ef| egrep -v 'cat|bad|sat' :
It searches all the three words in the file egrep 'cat|bad|sat' file.txt If you want to search multiple words in the same grep command, then use the egrep command in UNIX (17) line starts with “.” and 2 lower case letters} letters grep '^\.' egrep command in Unix (16)any line that starts with a Period “.” grep '^\.' (15) ‘kite’, with or without quotes grep '"*kite"*' (14) ‘kite’ within double quotes grep '"kite"' (13)lines with exactly one character grep '^.$' (12)anything, not a letter or number grep '' (11)any line with at least one letter grep '' 1.txt (10)list your mail grep '^From: ' /usr/mail/$USER (9)search for pairs of numeric digits grep '' file (7)search for TOM, Tom, TOm, or ToM grep 'T' file.txt Grep '\^s' file.txt(6)Search for ‘kite’ or ‘Kite’ (5)lines starting with ‘^s’, “\” escapes the ^ (4)lines containing only ‘kite’ grep '^kite$' (3) ‘kite’ at the end of line grep 'kite$' (2) ‘kite’ at the start of a line grep '^kite' file.txt (1)search file.txt for lines with ‘kite’ grep kite file.txt This can also be done like this also grep 'tom\|bob\|bill\|' file.txt Understanding Regular Expressions : grep regex examples (9) You can search multiple words in a file using “grep -e” grep -e tom -e bob -e bill file.txt
The below example searches adpatch.log for word failure in any case grep -w failure adpatch.log (8) We can use the “grep -w” option for searching the specific work, not the sub-string. It will not show the lines which have oracle string in it ps -ef|grep -v oracle We can use grep -v to exclude the search item. Its searches for oracle string in current directory files and all the files in a subdirectory grep -r "oracle" * (5) pipe who to grep, look for applmgr who | grep applmgr (4) find ‘run time’ or ‘run-time’ in all txt in file.txt grep runtime *.txt You can use the option “grep -i” to make it case insensitive. By default grep command is case sensitive. It would then be available to you on any machine.(3) grep case insensitive search. The default profile location for PowerShell is %USERPROFILE%\Documents\WindowsPowerShell you could technically have this live in OneDrive. The ones that would be beneficial at both locations I just manually copy them over. A lot of the commandlets I create for work wouldn’t be beneficial to me at home. I use an alias of fcs so I don't have to type the entire command name.Īnytime I have to type a PowerShell command out more than once it usually becomes a commandlet. This will search files with the passed in extension for the word pattern. I *.$Extension -R | sls -Pattern $Pattern Here are a few:Īnother option that I tend to do is create PowerShell commandlets. More Suggestions from ReadersĪ few readers left comments (below) and some emailed me directly with their own solutions to this problem. What are your favorite grep tips, especially on Windows? Leave your answer in the comments below.
The flags -irn mean ignore case (-i), recurse subdirectories (-r), and print line numbers of matches (-n). In the above terminal window you can see a simple grep command for finding a string in any file in a folder, recursively.
#Find corrupted files using grep windows#
Then I remembered I'd installed WSL - Windows Subsystem for Linux - which meant I actually had the power of grep available to me!įind all instances of 'ardalis' in folder 'docs' recursively
#Find corrupted files using grep install#
I really didn't feel like this required me to install One More Thing ™ when I knew this would be so easy if only I could use grep. I did a quick search for 'windows explorer search markdown files' which led me to a Super User thread that said I'd have to install a Markdown Preview to do it. No dice - it found no results when I knew there were some. My initial thought, since I'm on Windows, was to use Windows File Explorer's search dialog. I recently needed to find which of a bunch of markdown files had a particular string in them.
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