systemd custom status message?
I’m trying to write a systemd service which should expose the options start|stop|status|restart.
Unix & Linux
RHEL: Creating stable names for network interfaces
We have a RHEL 5.5 box with 8 interfaces. And the eth interface naming is flip flopping. Sometimes eth0 comes up on physical port 7th, and sometimes on another physical port.
Is it possible to reference the most recently modified file in a command line argument?
I frequently download PDF files with heinous numeric file names from my browser. These automatically go into ~/Downloads. Ideally I would like to just be able to open these files with:
Directory permissions vs file permssions
If I have two users called john and sally. Both are part of the users group. john creates a directory with permissions 775. sally then puts a file there with 644 permissions.
Separate environment with different /bin/sh
I have a bunch of shell scripts which incorrectly assume /bin/sh to be equivalent to /bin/bash. E.g., they have the #!/bin/sh shebang, but use the source command instead of . (dot).
Moving tmux pane to window
How do I move an existing pane into another window in tmux when I have multiple windows, and vice versa?
last time file opened
Is it possible to get the time when file was opened last time and sort all files in a directory by those times?
intersection of two files according to the first column
I have two files
in file A, there are sequence_numbers
in the other file B, there are many columns, and the first column is sequnce numbers,
I want to get a files with all the lines in the B with the sequence numbers which are in the A
how can I achieve this?
thanks
How does the “tail” command’s “-f” parameter work?
$ tail -f testfile the command is supposed to show the latest entries in the specified file, in real-time right? But that’s not happening. Please correct me, if what I intend it to do is wrong… I created a new file “aaa” and added a line of text and closed it. then issued this command … Read more