Dev C++ Says Directory Doesnt Exist But Its Linked
Apr 01, 2015 The early, not-so-thorough, testing result is that my favorite cocktail of old good C and basic templated C appears to compile and work like before. Give it a try and let the others know. Orwelldevcpp - 2015-03-30. Better yet, using the automatic configuration button, it will fix issue 1. An Opinionated Guide to React: Folder Structure & File Naming Announcing the Twilio Hackathon on DEV Stop making responsive websites the hard way! Environment Variables in Next.js React Router v6 in Three Minutes Theia 1.0 - Finally a Good Browser IDE Understanding the Node.js event loop phases and how it executes the JavaScript code.
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With the help of BASH shell and IF command, it is possible to find out if a file exists or not on the filesystem. A conditional expression (also know as “evaluating expressions”) can be used by [[ compound command and the test ([) builtin commands to test file attributes and perform string and arithmetic comparisons.
You can easily find out if a regular file does or does not exist in Bash shell under macOS, Linux, FreeBSD, and Unix-like operating system. You can use [ expression ], [[ expression ]], test expression, or if [ expression ]; then .. fi in bash shell along with a !operator. Let us see various ways to find out if a file exists or not in bash shell.
Syntax to find out if file exists with conditional expressions in a Bash Shell
The general syntax is as follows:
[ parameter FILE ]
OR
test parameter FILE
OR
[[ parameter FILE ]]
Where parameter can be any one of the following:
- -e: Returns true value if file exists.
- -f: Return true value if file exists and regular file.
- -r: Return true value if file exists and is readable.
- -w: Return true value if file exists and is writable.
- -x: Return true value if file exists and is executable.
- -d: Return true value if exists and is a directory.
Please note that the [[ works only in Bash, Zsh and the Korn shell, and is more powerful; [ and test are available in POSIX shells. Let us see some examples.
Dev C++ Says Directory Doesn't Exist But Its Linked Account
Find out if file /etc/passwd file exist or not
Type the following commands:$ [ -f /etc/passwd ] && echo 'File exist' echo 'File does not exist'
$ [ -f /tmp/fileonetwo ] && echo 'File exist' echo 'File does not exist'
How can I tell if a regular file named /etc/foo does not exist in Bash?
You can use ! operator as follows:[ ! -f /etc/foo ] && echo 'File does not exist'
Exists
OR
[[ example
Enter the following commands at the shell prompt:$ [[ -f /etc/passwd ]] && echo 'File exist' echo 'File does not exist'
$ [[ -f /tmp/fileonetwo ]] && echo 'File exist' echo 'File does not exist'
Find out if directory /var/logs exist or not
Type the following commands:$ [ -d /var/logs ] && echo 'Directory exist' echo 'Directory does not exist'
$ [ -d /dumper/fack ] && echo 'Directory exist' echo 'Directory does not exist'
[[ example
$ [[ -d /var/logs ]] && echo 'Directory exist' echo 'Directory does not exist'
$ [[ -d /dumper/fake ]] && echo 'Directory exist' echo 'Directory does not exist'
Dev C++ Says Directory Doesn't Exist But Its Linked List
Are two files are the same?
Use the -ef primitive with the [[ new test command:
How to check if a file exists in a shell script
You can use conditional expressions in a shell script:
Save and execute the script:$ chmod +x script.sh
$ ./script.sh /path/to/file
$ ./script.sh /etc/resolv.conf
To check if a file exists in a shell script regardless of type, use the -e option: Traktor pro 1.1.
You can use this technique to verify that backup directory or backup source directory exits or not in shell scripts. See example script for more information.
A complete list for file testing in bash shell
From the test command man page:
[ Expression ] | Meaning |
---|---|
-b filename | Return true if filename is a block special file. |
-c filename | Return true if filename exists and is a character special file. |
-d filename | Return true filename exists and is a directory. |
-e filename | Return true filename exists (regardless of type). |
-f filename | Return true filename exists and is a regular file. |
-g filename | Return true filename exists and its set group ID flag is set. |
-h filename | Return true filename exists and is a symbolic link. This operator is retained for compatibility with previous versions of this program. Do not rely on its existence; use -L instead. |
-k filename | Return true filename exists and its sticky bit is set. |
-n filename | Return true the length of string is nonzero. |
-p filename | Return true filename is a named pipe (FIFO). |
-r filename | Return truefilename exists and is readable. |
-s filename | Return true filename exists and has a size greater than zero. |
-t file_descriptor | Return true the filename whose file descriptor number is file_descriptor is open and is associated with a terminal. |
-u filename | Return true filename exists and its set user ID flag is set. |
-w filename | Return true filename exists and is writable. True indicates only that the write flag is on. The file is not writable on a read-only file system even if this test indicates true. |
-x filename | Return true filename exists and is executable. True indicates only that the execute flag is on. If file is a directory, true indicates that file can be searched. |
-z string | Return true the length of string is zero. |
-L filename | Return true filename exists and is a symbolic link. |
-O filename | Return true filename exists and its owner matches the effective user id of this process. |
-G filename | Return true filename exists and its group matches the effective group id of this process. |
-S filename | Return true filename exists and is a socket. |
file1 -nt file2 | True if file1 exists and is newer than file2. |
file1 -ot file2 | True if file1 exists and is older than file2. |
file1 -ef file2 | True if file1 and file2 exist and refer to the same file. |
Conclusion
You just learned how to find out if file exists with conditional expressions in a Bash shell. For more information type the following command at shell prompt or see test command in our wiki or see bash man page here:bash(1),test(1)
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Dev C++ Says Directory Doesn't Exist But Its Linked Mean
This goes out to only the users of Dev C++ (or people knowledgeable with this compiler). I am trying to consolidate all of the files needed to run Dev C++ onto a flash drive so I can use it on multiple computers. I have been having problems getting the app files to move though because the program wants them to stay in one place. It says on installation to pass the parameter '-c c:config_file_directory' to the program but I don't know how to do that.
Thank you for the help.
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TheBeast3254
To pass a parameter to the program, do it from the command line. If it's devcpp.exe. Do dev-cpp.exe -c 'C:config'