pjh questions

pjh answers

• Duplicate command output, print un-post-treated copy to stdout and store post-treated copy into a file [duplicate]
• How to require a file not owned by an RPM in a spec file "Requires" line?
• Shell behavior difference with empty parameter in heredocument
• How to run command in background and also capture the output
• how to randomly loop over an array (shuffle) in bash [duplicate]
• Find file recursively excluding subfolders with specific substring
• Right way to order functions and conditions
• prepend and append a string to all elements of an array without using a temporary variable
• Add file name to txt file if it is not zero bytes
• bash echo environment variable containing escaped characters