Why does bash execute command on all files in a directory?

Deondre Raynor asked a question: Why does bash execute command on all files in a directory?
Asked By: Deondre Raynor
Date created: Mon, Feb 22, 2021 3:09 AM

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Top best answers to the question «Why does bash execute command on all files in a directory»

  • This is needed because as noted previously, the shell filenames can contain dashes anywhere in the filename. Some of the shell commands interpret that and treat them as a command option when the name are not quoted properly and executes the command thinking if the flag is provided.

FAQ

Those who are looking for an answer to the question «Why does bash execute command on all files in a directory?» often ask the following questions:

😳 How to execute script in different directory in bash?

  • When you see ./script being used it telling the shell that the script is located on the same directory you are executing it. To use full path you type sh /home/user/scripts/someScript. sh /path/to/file is different from /path/to/file. sh runs /bin/sh which is symlinked to /bin/dash. – Lekensteyn Nov 2 '11 at 14:19

😳 How to iterate over files in directory bash?

  • In this type, we will iterate over the list of files like file1, file2, file3 etc. We can use bash commands output as items for iterate. In this syntax, we expect that the $ (BASH_COMMAND) will return a list where we will iterate over this list. The simplest usage for for loop is over given file names.

😳 How to execute a bash command in python?

  • There are different ways to run bash commands in Python. Lets start with os.system command. Once we have imported the os. We can use os.system and pass it bash command. Lets try ls -ld /home command The command is executed. We can't capture the output with os.system To see the output of executed command. There is another way.

Your Answer

We've handpicked 23 related questions for you, similar to «Why does bash execute command on all files in a directory?» so you can surely find the answer!

How to get the list of files in a directory in bash?

  • You can check what will be listed easily by typing the ls command straight into the terminal. Basically, you create a variable yourfilenames containing everything the list command returns as a separate element, and then you loop through it.

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Does bash touch the current working directory?

  • If you have a customized bash or zsh prompt, the path to the current working directory may be shown in the shell prompt. The pwd command stands for print working directory. It is one of the most basic and frequently used commands in Linux. When invoked the command prints the complete path of the current working directory.

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Can php execute bash script?

Create a bash file named loop.sh with the following script that will print all even numbers from 1 to 20. Create a PHP file with the following script to run the bash script. 'bash loop.sh' is used as the first argument of the exec() function that will execute the loop.sh script file.

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How to execute a shell command in php?

  • Execute Shell Command in PHP using exec () The PHP script is mainly used for developing web applications but it can be used for other purposes also. PHP has some built-in functions to execute system-related commands. exec () is one of them. It is used to execute shell commands or any program from the PHP script.

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How does bash read its startup files?

Usually, this varies from one operating system to the next. In every case though, bash reads the system-wide initialization file in /etc/profile, and then the user bash-specific profile in ~/.bash_profile.

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How to add directory bash?

Linux

  1. Open the . bashrc file in your home directory (for example, /home/your-user-name/. bashrc ) in a text editor.
  2. Add export PATH="your-dir:$PATH" to the last line of the file, where your-dir is the directory you want to add.
  3. Save the . bashrc file.
  4. Restart your terminal.

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What is current directory bash?

The current working directory is the directory in which the user is currently working in. Each time you interact with your command prompt, you are working within a directory… If you have a customized bash or zsh prompt, the path to the current working directory may be shown in the shell prompt.

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What is the command to execute a shell script?

If the shell script is readable and executable then to execute it just type the name of the shell script file. Otherwise, you can explicity call a shell interpreter to run the file as a shell script, i.e., ksh myfile

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Bash can not execute go binary?

  • To execute a binary, use:./binary_name. If you get an error: bash:./binary_name: cannot execute binary file it'll be because it was compiled using a tool chain that was for a different target to that which you're attempting to run the binary on.

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What 1 does bash in command line?

  • Bash is the abbreviation of Bourne-again shell. UNIX shell runs the program in command line interpreter so that the computer program has various dialects in the language. The language has many commands in the text which is a mix of different commands.

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What does the bash command grep do?

  • grep is used to search for text from a file or another command's output. It can return the lines where it finds a match or the lines where it doesn't.

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What does the umask command in bash?

  • The user file-creation mode mask (umask) is use to determine the file permission for newly created files. It can be used to control the default file permission for new files. It is a four-digit octal number. A umask can be set or expressed using: You can setup umask in /etc/bashrc or /etc/profile file for all users.

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How manykb does crash bash save game files?

  • Log In to add custom notes to this or any other game. From magimoogle (01/21/2001; 131KB) 200% of the game completed. From Dugmaster (08/01/2011; 0KB) 200% of the game completed.

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Where does bash dump ubuntu files to windows?

  • However, the Bash environment doesn’t just dump you in your C:\\ drive. Instead, it places you in /, or the root directory you’d have on Linux. If you perform an ls command to view the contents of the directory, you’ll just see the Ubuntu directories that provide the Linux environment.

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How do you execute a multi line command in shell?

  1. The (&&) and (;) can execute a multi-line code that runs commands that are dependent and then independent of previous statements.
  2. A subshell can include commands listed within curly braces or the EOF tag.
  3. Curly braces could include a subshell and/or EOF tag.
  4. The EOF tag can include subshells and curly braces.

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Git bash can change default directory?

icon git bash git bash commands cheat sheet

  • Type git bash in search.
  • Right click on it and choose open file location.
  • Right click on it and choose properties.
  • At target remove --cd-to-home from "C:\Program Files\Git\git-bash.exe" --cd-to-home.
  • At start in put the path of the directory you want it to start at for example Start in: C:\xampp\htdocs.

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How to delte a directory bash?

shell git bash

To delete (i.e. remove) a directory and all the sub-directories and files that it contains, navigate to its parent directory, and then use the command rm -r followed by the name of the directory you want to delete (e.g. rm -r directory-name ).

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What is git bash default directory?

Git Bash is set up to start at your home location on Windows. That's usually something like C:\Users\your_name. If your repos are not under your home path, you'll have to do a lot of navigating every time you open Git Bash to get to them.

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Where is git bash home directory?

Find it by typing cd / then pwd -W . Alternatively, from the start menu, right click on the Git Bash icon and select open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git , the mingw64 in this directory is your root.

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Can bash on windows10 execute windows programs?

  • In the Creators Update, Windows 10's Bash shell now allows you to run Windows binaries and standard Command Prompt commands , right from Bash. You can run both Linux and Windows programs from the same Bash shell, or even incorporate Windows commands into a Bash script.

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How to execute bash commands in perl?

reverse shell shell script

From Perl HowTo, the most common ways to execute external commands from Perl are:

  1. my $files = `ls -la` — captures the output of the command in $files.
  2. system "touch ~/foo" — if you don't want to capture the command's output.
  3. exec "vim ~/foo" — if you don't want to return to the script after executing the command.

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How to execute bash script using php?

  • Put that at the top of your script, make it executable ( chmod +x myscript.php ), and make a Cron job to execute that script (same way you'd execute a bash script). You can also use php myscript.php. Sometimes PHP is placed in non standard location so it's probably better first locate it and then try to execute.

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How to check if a directory is a directory in bash?

  • This code will loop through all files in the current directory, check if f is a directory, then echo f if the condition returns true. If f is equal to */, echo $f will not execute. Use shopt -u dotglob to exclude hidden directories (or setopt dotglob / unsetopt dotglob in zsh). You can use pure bash for that, but it's better to use find:

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