WebHere what I am doing right now: Open up the terminal alt + ctrl + t vi a.txt I move my cursor to the line which I wan to delete, then what key-combination is should use to delete line in … WebHow to remove duplicate lines in UNIX can be done in many different ways. A simple way is to use the uniq command, which prepends the number of the first occurrence of each line to the line. In other words, uniq will only count the duplicate lines when they are adjacent to each other. So, if the second line is not duplicated, the prepended ...
Linux / UNIX delete a file using rm command - nixCraft
WebMar 11, 2002 · You can use following in escape mode to delete all lines from a file. :1,$d # 3 03-11-2002 sbw1 Registered User 5, 0 Or, you could enter on line one: dG and that would delete to the end of the file. # 4 03-11-2002 thehoghunter Guest n/a, 0 If you want to delete ALL the lines, don't bother with vi. WebJun 26, 2012 · Delete the first line AND the last line of a file, i.e, the header and trailer line of a file. $ sed '1d;$d' file Unix Linux Solaris Multiple conditions are separated using the ';' operator. Similarly, say to delete 2nd and 4th line, you can use: '2d;3d'. 7. Delete all lines beginning with a particular character, 'L' in this case: quark matrix enchanting table
Linux Terminal Basics #9: Editing Files in Linux Terminal - Linux …
WebJul 8, 2024 · Print all matching lines (without the filename or the file path) in all files under the current directory that start with “access.log”, where the next line contains the string “404”. WebOct 7, 2013 · As far as I know, this command can be used to create some other file with the deleted lines. Now that we have another file we can rename that file and delete the … WebSep 6, 2014 · If you are using bash, there is no need to call any external tools to perform this. You can use parameter expansion alone as per below: Code: # Example line variable line="this is an example line of text" # Now lets delete 8 characters after the 10th character (deleting the word example) echo $ {line/$ {line:10:8}} quark makes up protons and neutrons