Linux, Cloud, Containers, Networking, Storage, Virtualization and many more topics, # echo "some content" > -file [i]<>filename opens file filename for reading and writing, and assigns file descriptor i to it. Let’s see some other ways you can use it with its options. Posix Guidelines. # cat - You can tweak the cat syntax to check the content of (-) # cat < - server1.example.com The proper way to view content of dashed filename would be again to prefix the path of the file We can also list file names those starts with dash . $cat -E "filename" Output. But if you try to create a file starting with dash (-) or just a dashed filename (-), The command was successful but the file is not created, Similarly if we place to create a file starting with (-) using touch it fails as the command assumes we are trying to pass an input argument instead of an operand to the command. $ touch {12.txt} Chevrons > in file name A file name having Chevrons must be enclosed in single quotes. Navigating to a directory with spaces in the directory name. */ in the beginning because find matches the whole path. FHS compliance. No Extra Care needed. You can tweak the cat syntax to check the content of (-), The proper way to view content of dashed filename would be again to prefix the path of the file, You can use any supported command such as more, less, tail, head to view the content using the path with filename, We can also use double dash (--) combined with cat or other similar commands to view a dashed filename, You can remove the single dash (-) file using simple rm command, But this will not be able to delete dashed filename. 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A simple way to rename files and folders is with the mv command (shortened from “move”). How to create dashed filename and directories? Step 1: Under terminal, type: “touch your filename“ and press enter. We will use echo  command and redirect the data into the file. You can also use regex to find a file (-). Edit the file as normal and save it using toolbar. There is special argument -- double dash which is used with file name starts with dash . How to remove dashed filename and directories? Here is my scenario: I have a variable with a user input string, which is the name of a file. $ touch ' 12.txt>' Square Brackets [ ] in file name How to find files and directories starting with dash? This is the simplest and perhaps the most popular command to view a file in Linux.Cat simply prints the content of the file to standard display i.e. Tip: Handling a filename starting with a dash (-) You can “hide” the dash from the command by starting the filename with ./ (dot slash). For this mv command to work, you can prefix the source file name with its pathname. December 7, 2020 by. We need to specify the double dash in order to remove file name starts with dash. is there a good reason to begin a filename with a dash? Using ls on Different Directories. Method 1: Using Find command. We will use cat  command and provide -- double dash option again like previous examples. This is an issue for Turkish and Azeri. How to open and read dashed filename? To find the file, type: `find ~/ -iname "test.sh" ` This will print the path to your file, if it exists. In this example we will remove file named -datafile . If you didn't find the file you are looking for, try searching in other places. The touch command creates an empty text file, that is why if you would use the ‘cat’ command then you’ll not get any output. I recommend reading this detailed tutorial on using cat command.The problem with cat command is that it displays the text on the screen. To make a file and print hello, type this: ` touch test.sh ; echo "hello" > test.sh `. On Linux, Everything Is a File. Graham Marshall. file -b filename Please use shortcodes
your code
for syntax highlighting when adding code. Command $cat -A "filename" 11) Cat command to open dashed files. By the way: The superscript dot of the letter i was added in the Middle Ages to distinguish the letter (in manuscripts) from adjacent … RS274-X files are generated from different PCB CAD programs and are used … lsb_release -a > ubuntu_version.txt. Default Behavior: When this section is listed as "None. */[-]" -printf "%f\n", # find /root/dir/ -type f -name "*" -regex ".*/[-]. For example:.sh = Shell file.tar.gz = Compressed archive; Most modern Linux and UNIX limit filename to 255 characters (255 bytes). Although there are some hacks where we can add content to a file which will also create the file: We can also use hacks where we can send command's output to (-) which will also create a dashed filename, Proper way to create a dashed filename would be to prefix the path before the filename, If you plan to create a dashed filename such (-file) then you can also use (--) which means end of options. Remove filename from the output. file filename. command > filename.fileextension Adding to an existing file. Type: “cat your filename.txt” and press enter, for eg. mv ./-myfile.txt myfile.txt Typing this command with the forward slash in front of the dash, renames the file in the current directory , causing Linux to ignore the dash. You can also pass more than one directory to ls, and have them listed one after the other. It cannot be simpler than this, can it?Cat becomes a powerful command when used with its options. When prompted for a password, enter sudo password. So, in … Launching a file with dashes in the filename - posted in Ask for Help: Hello, How can I launch a file in a way which works regardless of how many dashes are int he filename. So files which name begins with dash (-) can not be dealt with directly by typing the command and the file name, such as the following: less -file-with-a-dash-as-first-character Files which name begins with dash (-) can be used as follows: less ./-file-with-a-dash-as-first-character Real usage. However if I have multiple files starting with build the autocomplete doesn't work - it simply gives me a list of files starting with build.. As we have seen in previous example we can read data from file which starts with a dash. The Ubuntu font has been downloaded 109,301 times. You can also open config file in bash instead of a separate window. The proper steps to delete dashed filename would be to combine rm with (--) i.e. We will use -- option again in order to use dash in files name. Replace /path/to/filename with the actual file path of the configuration file that you want to edit. $ touch '(12.txt)' Braces {} in file name. In this tutorial we learned about how Posix handles dash (-) and double dash (--) in Linux and Unix. If filename does not already exist, it is created. But we cant and can error like invalid option  etc. We will use Ubuntu 18.04 LTS for describing the procedure mentioned in this article. We will read the file named -datafile. Linux commands generally need explicit operations to cope with file names those starts with dash. Imagine if you use cat command with a file that has 2000 lines. If the file name has Parenthesis, you need to enclose filename with single quotes. Feel free to customize the command above. What is single dash (-) and double dash (--) in Posix? Most Linux distributions follow the Filesystem Hierarchy Standard and declare it their own policy to maintain FHS compliance. 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