Best way to remove file extension from a string?
So, I’m using a script I’ve made to convert videos to the webm format. A certain program calls the script, sending %f which is the full, absolute file name of the video, like this:
shell
ls command: what does the first line mean?
When I do ls -l I get this:
How can I find broken symlinks
Is there a way to find all symbolic links that don’t point anywere?
monitoring file changes + process access to files
I would like to see what’s happening in my app server folders, i.e. which files are changed by process x or which *.war files have been changed (replaced/created) in the last x minutes.
What is the portable (POSIX) way to achieve process substitution?
Some shells, like bash, support Process Substitution which is a way to present process output as a file, like this:
Can files be created with permissions set on the command line?
When creating directories, mkdir -m <mode> <dir> provides for creating one or more directories with the given mode/permissions set (atomically).
login/non-login and interactive/non-interactive shells
login shell: A login shell logs you into the system as a specific user, necessary for this is a username and password. When you hit ctrl+alt+F1 to login into a virtual terminal you get after successful login: a login shell (that is interactive). Sourced files:
Do we have more history for cd?
cd - can move to the last visited directory. Can we visit more history other than the last one?
/dev/tcp listen instead of nc listen
With a netcat listener like:
Grabbing the first [x] characters for a string from a pipe
If I have really long output from a command (single line) but I know I only want the first [x] (let’s say 8) characters of the output, what’s the easiest way to get that? There aren’t any delimiters.