I was working through a tutorial and saw use of both cat myfile.txt and cat < myfile.txt. Is there a difference between these two sequences of commands? It seems both print the contents of a file to the shell.
This is linked to this question.
When you fork a process, the child inherits its parent’s file descriptors. I understand that when this happens, the child receives a copy of the parent’s file descriptor table with the pointers in each pointing to the same open file description. Is this the same thing as a file table, as in http://en.wikipedia.org/wiki/File_descriptor, or something else?
I’m trying to execute this command
Linux’s /proc/<pid>/environ does not update a process’s environment. As I understand it, the file contains the initial environment of the process.
I am trying to find the largest file in a directory recursively. If there is a subdirectory inside of that directory the function needs to go inside that directory and check to see if the largest file is there. Once the largest file is found the output is displayed with the relative path name and the name and size of the largest file.
I have two files opened in vim, each in one tmux pane. I would like to copy let’s say 10 lines from one file to another.
When I have an output stream: a b c d e How can I double the newlines: a b c d e Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found … Read more
I think an example is in order. Consider I have these two environment variables setup (by a Continuous Delivery tool): PACKAGE_VER=1.2.3 and USE_VERSION_FROM=PACKAGE_VER.
I recently upgraded my disk from a 128GB SSD to 512GB SSD. The / partition is encrypted with LUKS. I’m looking for help extending the partition to use all the free space on the new disk. I’ve already dd’d the old drive onto the new one: