Copy an evenly spaced subset of files For example I have files : file0.txt file1.txt file2.txt …. file100.txt I would like to copy 5 files in bash, which will produce result : file0.txt file19.txt file39.txt file59.txt file79.txt Edit. screwed up counting should be this: file0.txt file20.txt file40.txt file60.txt file80.txt So files are evenly spaced sampled. …
What are the metrics that `file <file>` uses to determine the type of a text-like file? I have a bunch of LaTeX source files, all have the same structure, all have Unix-style line endings and all are UTF-8, all are roughly the same size (1-2KB), all use spaces for indentation-formatting. They are included in a …
Create bootable iso file from rootfs linux files I want to make bootable iso file from typical Linux distributive files. I have tried to make grub bootloader, firstly I created template for grub.cfg using grub-mkconfig and I added this configuration at start of it: set default=0 set timeout=5 menuentry "LinuxTest" { set root=(hd0) linux /boot/bzImage …
How can I search based on file contents? (GUI, not terminal) Every question and answer I’ve seen so far is ancient or just about grep in the terminal. I want an easy way to search my ~/code folder for certain strings. And I want the interface to allow filtering by file extension, etc. I thought …
Confused about command line options for Linux mkfs I am formatting a new drive on Ubuntu 20.04, and I am at the step where I format the drive to ext4. One article (https://linuxize.com/post/fdisk-command-in-linux/) says to do this: sudo mkfs.ext4 -F /dev/sdb1 The article doesn’t say what the -F option is, and there is no -F …
Rename file in Mac OS Terminal using Regex or translate from Windows Script I would like help with a shell script for macOS to rename files with a certain pattern. The script would handle only one file, not multiple. Here are three examples: a. Public Talks_ (189) Walking With God Brings Blessings Now and Forever …
Thunar and ls different file size I have a complete android userdata partition image on disk and it shows 48.9 GiB on Thunar but only 3.8 GB in ls and Baobab. How is it possible ? Thanks Asked By: darkon11 || Source This might be a sparse file; i.e. a file that has "holes" where …
Regular user is able to modify a file owned by root If the file is a plain text file created by root with: echo ‘foo’ > ./file.txt Your ls -l is: -rw-r–r– root root ./file.txt But as a regular user, I can change this with vim saving with :w! or with a sed command and …
On Ubuntu 22.04, editing limits.conf to increase number of file descriptors doesn't work I followed this answer: https://askubuntu.com/a/162230 I edit limits.conf, now it is * soft nofile 65536 * hard nofile 65536 * soft nproc 65536 * hard nproc Unlimited root soft nofile 65536 root hard nofile 65536 Also, I edit both "/etc/pam.d/common-session" and "/etc/pam.d/common-session-noninteractive". …
How to move all files whose contents begin with 0? Here’s a command to move all files whose name begin with 0 into a folder called zero : mv [0]* zero Question: What is a command for moving all files whose contents begin with 0 into a folder called zero? Hopefully, there is a short …
Return all files of a specific extension with directory and subdirectories paths using terminal on MAC OS I need to return path along with the file name in the a directory and all sub-directories, but only if a fie has a specific file extension (e.g. .txt). I tried this, but it does not filter by …
Why files are created with different encodings using vi When I work with Bash scripts, I always create files using vi. I am debugging a script that in theory is written correcly and I decided to check the files I have created using the file command. This is what I see. myScript1 Bourne-Again shell script …
Hard link as destination of cp and rsync Where do I find documentation of behavior of cp and rsync commands when the destination path shares the inode with another path? In other words, when I do $ cp [options] src dest $ rsync [options] src dest and when there is dest2 that is a hard …
Can't interact with a file with an apostraphe directly in bash I have a file titled "I’m Here.mp3" when I try to interact with it with ls, cp, mv, anything, it returns cannot stat "./I’m Here.mp3": No such file or directory. I tried double quotes, single quotes, no quotes, each with and without trying to …
How could i have certain directories in a removable device? Lets say i want this directory structure on a SD card: SD ├── log -> var/log ├── dbs -> var/db └── desktop -> home/desktop (its just an example) This is so everytime a file goes into /var/log instead it goes to SD/var/log, how could i …
Use bash to overwrite old file with a new file named according to current date I am a complete beginner with linux, and need help making a bash script to create a file with a specific date in the file name. I have a directory called /backups/, in which I would like to create a …
How to get the size of a folder as reported by Windows Explorer on Linux? On Windows when you view the properties of a folder the size is calculated as follows (recursively): for files the length of the content counts symbolic links count zero folders themselves count zero Is it possible to get the same …
Using find in order to detect a magento module At magento routes are located in adminhtml/routes.xml each module has a folder named adminhtml with a file routes.xml each module has its own folder. In other words I have the following file structure: vendor + MyModule ++ etc +++ adminhtml ++++ routes.xml + AnotherModule ++ etc …
How to preserve file creation date when overwriting files? When I’m overwriting one file with another one, not only it’s modification time updates, but also birth time, which is unwanted. I want to make Dolphin overwrite files that way, so target’s birth time will stay the same the same as it was before overwriting. But, …
Leftover kernel directories with files Why there are Kernel leftovers and can I get rid of them automatically? There are so many kernel directories after a few months, that I get annoyed with it. I just carefully inspected the /usr/lib/modules directory and removed all old kernel directories, but for one, and inspected its actual contents: …
