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How to delete or get the number in the tail from a string in shell script?
How to delete or get the number in the tail from a string in shell script (bash script)? Okay to call other tools. For example, from “/dev/sda8”, I want to get “/dev/sda” and “8” separately. This can be achieved by using sed as follows. To get the string after deleting the tailing numbers, we can…
encfs on CentOS 6 can’t mount as normal user
On CentOS 7, using a normal user, encfs works just well. On CentOS 6, using the root user, encfs works. However, the problem is, on CentOS 6, using a normal user account, encfs does not work as on CentOS 7. $ encfs -s ~/t/.enc ~/t/enc EncFS Password: fuse: failed to exec fusermount: Permission denied fuse…
How to exclude users from GDM login screen?
How to exclude users from appearing in the GDM login screen of Gnome 3? There is a long-time bug related to this ( https://bugzilla.redhat.com/show_bug.cgi?id=723708 ) which causes that the /etc/gdm/custom.conf has no effect. The closes workaround I find working on Fedora 20 is to totally disable listing of users (run as root): cat > /etc/dconf/db/gdm.d/01-mysettings…
Add Inline Comments for Multi-line Command in Bash Script
In Bash script, it is common that multiple small commands run together connected by pipes (|) and the whole command is quite long. For clarity, we may write the command in multiple lines. How to add comments for these long multi-line commands? In Bash, the content after # in a line is the comment. Using…
How to Sync the Contacts in My iPhone with Google Gmail Account
How to Sync the Contacts in My iPhone with Google Gmail Account? To sync your Google contacts, one good method is using CardDAV. You’ll be able to edit, add, and remove contacts from your device and keep them in sync with your Google Gmail account. It is straightforward: Open the Settings application on your device….
How to Configure Linux Kernel Video Mode for 32-bit and 16-bit Boot Protocols
The Linux kernel has a generic driver for a graphic framebuffer named vesafb on intel boxes. It provides a nice large console for most of modern displays. Setting VESA modes for Linux kernel with 32-bit and 16-bit boot protocol are different. We introduce both methods here. Linux kernel with 32-bit boot protocol For machine with…