Given the files: 1.txt 1, abc, 123, 456, 789 2, lmn, 123, 456, 789 3, pqr, 123, 456, 789 2.txt 1, abc, 123, 000, 000 3, lmn, 123, 000, 000 9, opq, 123, 000, 000 OUTPUT.txt ID, NAME, X, ...
I have a CSV file containging entries like this : ipaddress,VLAN,VLANid 10.192.168.1,vlan-xyz,3 10.192.168.1,vlan-abc,8 10.192.168.1,vlan-mnp,11 10.192.163.24,vlan-llz,3 10.192.163.24,vlan-bbz,5 ...
I want to find out what device my file is on so that I can use it in a script. I can get this far: $ df . Filesystem 512-blocks Used Available Capacity Mounted on /dev/disk0s2 498438976 ...
I have a directory of lots of .PDF and .JPG files. There should be a .JPG file for each .PDF with the same name. I'm trying to use a command to find .PDF files that doesn't have a .JPG file. My ...
I have several files which contain some PHP includes and I want to substitute them with the file contents. The file looks like foo <?php include("file1.php"); ?> bar baz <?php ...
I've got an extreme problem, and all of the solutions I can imagine are complicated. According to my UNIX/Linux experience there must be an easy way. I want to delete the first 31 bytes of each file ...
There are hundreds of .html files in a directory. I need to delete files that don't contain word bluecar in their contents. I thought sed with rm would do that, but I don't know how to combine them.
So I know tools exist for this problem because I've heard about them, but I don't know what they are. I want to do something like filter out all data but the usernames in /etc/passwd. For example, I ...