What is cp: cannot stat error in Unix, I get this error when trying to copy thing from one folder to another
If your source directory is set in quotes, then make sure that the * is outside the quotes, i.e. or
command-line
How do I make a python script executable?
Add a shebang line to the top of the script:#!/usr/bin/env python Mark the script as executable:chmod +x myscript.py Add the dir containing it to your PATH variable. (If you want it to stick, you’ll have to do this in .bashrc or .bash_profile in your home dir.)export PATH=/path/to/script:$PATH
Diff command along with Grep gives “Binary file (standard input) matches”
From man grep: -a, –text Process a binary file as if it were text; this is equivalent to the –binary-files=text option. –binary-files=TYPE If the first few bytes of a file indicate that the file contains binary data, assume that the file is of type TYPE. By default, TYPE is binary, and grep normally outputs either a … Read more
Recursively find all files that match a certain pattern
With gnu find you can use regex, which (unlike -name) match the entire path: To just count the number of files: (The %i format code causes find to print the inode number instead of the filename; unlike the filename, the inode number is guaranteed to not have characters like a newline, so counting is more reliable. Thanks to @tripleee for … Read more
How to change the output color of echo in Linux
You can use these ANSI escape codes: And then use them like this in your script: which prints love in red. From @james-lim’s comment, if you are using the echo command, be sure to use the -e flag to allow backslash escapes. (don’t add “\n” when using echo unless you want to add an additional empty line)
mkdir’s “-p” option
So this doesn’t seem like a terribly complicated question I have, but it’s one I can’t find the answer to. I’m confused about what the -p option does in Unix. I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one. It looked like this: This is in a private … Read more
Windows 7 Symbolic Link – Cannot create a file when that file already exists
The correct usage is: You’re creating a link, so the link is the new link you’re about to create.And the target is the link’s target, which is the existing directory.
Command Prompt “Net View System Error 6118”
6118 means The list of servers for this workgroup is not currently available, mostly it is due to the firewall protection blocks the SMB. You can check as following steps first check each pc is in the same workgroup. disable the firewall and virus protect in each PC. Ping PC2 from PC1 to ensure the … Read more
How can I pass an argument to a PowerShell script?
Tested as working: Call it with Multiple parameters syntax (comments are optional, but allowed): And some example for advanced parameters, e.g. Mandatory: A default value will not work with a mandatory parameter. You can omit the =$true for advanced parameters of type boolean [Parameter(Mandatory)].
Mysql: Setup the format of DATETIME to ‘DD-MM-YYYY HH:MM:SS’ when creating a table
“MySQL retrieves and displays DATETIME values in ‘YYYY-MM-DD HH:MM:SS’ format.” This is from mysql site. You can store only this type, but you can use one of the many time format functions to change it, when you need to display it. Mysql Time and Date functions For example, one of those functions is the DATE_FORMAT, which … Read more