WebAug 31, 2012 · This will NOT work if the lines are not truly blank (if they contain spaces, tabs or carriage returns). If you want to remove the comments as well: $ grep . testfile.txt grep -v "^#". This is a file. With a comment. Then some blank lines. And some more blank lines…. Then the end of the file. Web-empty File is empty and is either a regular file or a directory. So to find both empty files and directories it is sufficient to do. find ~/lists -empty To indicate the type, you could use …
grep - Deleting Files From A Directory Containing A …
WebDec 30, 2013 · You can use ls and grep to find your files and rm -rf to delete the files. rm -rf $(ls grep car) But this is not a good idea to use this command if there is a chance of … WebThe grep command is primarily used to search a text or file for lines that contain a match to the specified words/strings. By default, grep displays the matched lines, and it can be used to search for lines of text that … how to use a scott fertilizer spreader
grep - Deleting Files From A Directory Containing A Certain …
Webam having issue with grep as VESTACP is using it a lot. i have file mysql.conf now when i run i get empty result , although there is HOST in mysql.conf file which i pasted above in code so any idea whats wrong with it UPDATE :: Vesta db connect code block and i get Error: mysql config parsi WebNov 15, 2024 · If you want to send the output (without comments) to another file instead, you’d use: $ grep -v '^#' /etc/fstab > ~/fstab_without_comment. While grep can format the output on the screen, this command is unable to modify a file in place. To do this, we’d need a file editor like ed. In the next article, we’ll use sed to achieve the same ... WebAug 20, 2024 · It's possible, but grep uses regular expressions that operate on strings, not numbers. grep -v '[0-9]\{5\}$' input.txt -v removes the matching lines. [0-9] matches any digit, \{n\} means the preceding thing is repeated n times (5 times in this case, i.e. 10000 and more). $ matches the line end. awk can compare numbers, so it's more suitable for ... how to use a scotia cutter