I’m using Debian squeeze, and running LVM on top of software RAID 1.
I just accidentally just discovered that most of the links under /dev/mapper are missing,
though my system seems to be still functioning correctly.
Is it possible to set the audio volume using the terminal instead of clicking the speaker icon in the top bar?
A lot of the time I edit a file with nano, try to save and get a permission error because I forgot to run it as sudo. Is there some quick way I can become sudo without having to re-open and re-edit the file?
I entered crontab -r instead of crontab -e and all my cron jobs have been removed.
I want to create a USB-to-USB data transfer system in Linux (preferably Ubuntu). For this I want to use no external hardware or switch (except this cable). It’s going to be like mounting a USB drive to a system, but in this scenario one of the Linux systems is going to be mounted on the other. How can I create this?
How can I encrypt or scramble my shell script so that it’s unreadable to the naked eye? Either method would be acceptable, please provide specific steps.
Suppose I have a directory structure like this:
I have the following output:
I have a big file and need to split into two files. Suppose in the first file the 1000 lines should be selected and put into another file and delete those lines in the first file.