Can a bash script delete itself

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August undefined, 2024

WebOnly when the last program closes its handle does the file really get deleted. So, in a sense, yes, a shell script can delete itself, but it won't really be deleted until after the execution … WebProgramming. 15 comments. Best. •. b) delete your whole OS in a line or two. You probably mean sudo rm -rf --no-preserve-root /. Which tells your OS to recursively delete every single directory and file starting from / path. On that note - please never write commands with this kind of destructive potential by hand.

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WebJan 25, 2014 · Lua, 17 bytes os.remove(arg[0]) This actually only works if you run the program by typing out the full filepath, i.e. lua ~/Scripts/removeself.lua would work, but lua removeself.lua would not, … WebSep 28, 2016 · The rm command is commented out so that you can check and verify that it's working as needed. Then just un-comment that line. The check directory section will ensure you don't accidentally run the script from the wrong directory and clobber the wrong files. You can remove the echo deleting line to run silently. crypto exchanges that failed

Shell Script to Delete the Zero Sized File Using If and For

WebOct 19, 2009 · A script is a text document that contains some high-level commands in a given language (usually bash or tch for unix commands). A process is what you get when you run (execute) a script - the computer translates the text commands in the script file into low-level computer commands, and then creates and executes those commands. it's like … Web@maxschlepzig POSIX allows the deletion of the last link to an executable that is currently being executed to fail: unlink may fail with ETXTBUSY. (Oddly, “pure procedure” and “shared text” aren't defined in the spec; AFAIK they mean a component of an executable program: the executable itself or a library it uses). Only when the last program closes its handle does the file really get deleted. So, in a sense, yes, a shell script can delete itself, but it won't really be deleted until after the execution of that script finishes. Note that you get different results if you overwrite the file instead of deleting it. crypto exchanges that allow shorting

Can a shell script delete or overwrite itself? - Stack …

shell脚本可以删除或重写自己吗？ - IT宝库

WebMay 24, 2006 · Set objFSO = CreateObject(“Scripting.FileSystemObject”) strScript = Wscript.ScriptFullName objFSO.DeleteFile(strScript) For i = 1 to 5 Wscript.Echo i Wscript.Sleep 1000 Next. As you can see, here we start out by deleting the script and only then do we enter the For Next loop and echo numbers back to the screen. WebJul 13, 2015 · I think I remember that under Command.com it was either impossible or could cause grief if a *.BAT script tried to modify or delete itself. For use by XP onwards with CMD.EXE I have a temporary need for a Run-Once script, which will do its job and then delete itself because there is no further need for it. crypto exchanges that allow credit cardsWebOr a way to exit the current script and starting it again. I've tried to do this: ScriptLoc=$ (readlink -f "$0") ./ScriptLoc. But that starts the "new" script inside the "old" script, so … crypto exchanges that allow us customers

"WebProgramming. 15 comments. Best. •. b) delete your whole OS in a line or two. You probably mean sudo rm -rf --no-preserve-root /. Which tells your OS to recursively delete every … " - Can a bash script delete itself

Can a bash script delete itself

How Can I Get a Script to Delete Itself? - Scripting Blog

Web在UNIX的操作系统上，如果仍然打开，则可以删除文件.文件名将不再存在，但数据本身确实保留，并且任何具有打开句柄的程序，包括Bash，可以继续使用该句柄读取(甚至甚至写入).只有在最后一个程序关闭其句柄时，文件真的被删除了. WebMay 3, 2024 · An exe can't delete itself because an exe can't be deleted while it's running. However, a batch file can delete itself, presumably because its contents get copied so the file can close before the code gets run. So what if there was a general-purpose batch file that deletes the calling executable and then deletes itself?

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WebNov 3, 2024 · Bash functions differ from most programming languages when it comes to returning a value from a function. By default, bash returns the exit status of the last executed command in the function's body. The script below shows how to specify the exit status using return: 1. Create a script and name it test.sh: vim test.sh.

WebAug 20, 2013 · This script will delete itself via the shred command (secure deletion) when it exits ... How to create a bash script that deletes itself. This script will delete itself via the shred command (secure deletion) when it exits #!/bin/bash # # Author: Steve Stonebraker # Date: August 20, 2013 # Name: shred_self.sh # Purpose: securely self … WebNov 17, 2024 · First of all, please excuse my poor english. I am trying to write a shell script to clean up some files of certain type in my backup folders. I need to remove files of certain type, except 10 newest in each folder.

WebNov 12, 2024 · 17. You can do it using following find command: find /path/to/transfer -mindepth 2 -delete. -mindepth 2 parameter tells find to ignore first two level of directories: searched directory itself, and all files and folders that are directly in it. -delete parameter just simply tells find to delete all files. You can always add more parameters (for ... WebFeb 22, 2024 · Create some empty files in your directory using the touch command. Touch command takes a filename as an argument. # touch file1.txt file2.txt file3.txt. Give permission to make the script executable. # chmod 777 deleteFile.sh. Run the script now and give the directory name, here we are using the current directory (.). # ./deleteFile.sh

WebMay 19, 2024 · Now remove that function because you don't need it anymore. You can do that with the unset command, like this: [student@testvm1 ~]$ unset -f hw ; hw bash: hw: command not found [student@testvm1 ~]$ The hello.sh script. Create a new Bash shell script, ~/bin/hello.sh, and make it executable. Add the following content, keeping it basic …

WebMar 11, 2014 · I just got the command to delete the executing bat file. Just add crypto exchanges that offer scaled ordersWebUpdate: Thanks to Registered User for pointing me to a better answer on Unix.stackexchange.com. Depending upon the size of the script and the … crypto exchanges that have been hackedWebThe reason of the permissions requirement difference lies in how the program that interprets your script is loaded:./script.sh makes your shell run the file as if it was a regular executable.; The shell forks itself and uses a system call (e.g. execve) to make the operating system execute the file in the forked process.The operating system will check … crypto exchanges that don\\u0027t require idWebOct 20, 2011 · What actually happens is that bash keeps the file open and rm won't make that stop. So rm calls the libc function "unlink ()" which will remove the "link" to the inode … crypto exchanges that offer trailing stopsWebJun 14, 2024 · rm -rf / — Deletes Everything! The command rm -rf / deletes everything it possibly can, including files on your hard drive and files on connected removable media devices. This command is more understandable if it’s broken down: rm — Remove the following files. -rf — Run rm recursively (delete all files and folders inside the specified ... crypto exchanges that use paypalWebJul 12, 2024 · Simplifying the Bash scripting process. You can make this script a bit more practical. For example, you could create a backup script that uses rsync to back up a directory to a USB-attached drive mounted at the /backup directory. If you previously backed up the same directory, that script might look like: #!/bin/bash . rsync -av --delete ... crypto exchanges that filed for bankruptcyWebJan 7, 2024 · The self-delete part itself is quite simple — rm $0 and the script goes kaput. But, I also need to remove the line from ~/.bashrc that triggered the script execution. For this, sed can be used. crypto exchanges usa scam