How to find and change a user’s UID on Linux?
How to find and change a user’s UID on Linux?
Find the UID of a user:
id -u $USER_NAME
Change a user’s UID:
# usermod -u $NEW_UID $USER_NAME
Similar Posts
OCaml Learning Materials
ByEric MaOCaml is an interesting functional language. There are lots learning materials on the Internet. I compile a list of resources for OCaml learning and reference. Recommended OCaml learning and reference material Online book of Real World OCaml by Yaron Minsky, Anil Madhavapeddy, Jason Hickey. A very good tutorial by Jason Hickey: http://www.cs.caltech.edu/courses/cs134/cs134b/book.pdf. The OCaml system…
How to change the display manager on Fedora Linux?
ByEric MaThe default display manager on my Fedora 22 is gdm. If I would like to change it to other display manager like KDM, LightDM or other, which is the portable and reliable method? You can use the “system-switch-displaymanager” tools to manage the display manager. This is possibly the most portable way. To install it: #…
How to make a static library (.a) on Linux
ByQ AHow to make a static library (.a) on Linux? How to generate a library from C programs in files lib1.c and lib2.c: $ gcc -c lib1.c lib2.c Create a library “libmy.a” using ar: $ ar -cvq libmy.a lib1.o lib2.o You can also list the files in a library with ar: $ ar -t libmy.a You…
HP Printer with Fedora Linux 19
ByQ AHow to use HP Printer connected with USB on Fedora Linux 19. Install these packages and it may ask you to download and install other plugins. Without these packages, my printer does work. # yum install hplip hplip-gui hpijs May also need to run: # hp-plugin to install plugins for the HP printer. This plays…
How to change the default target of `make`?
ByEric MaThe default target of make is the first target. But can I change the default target in Makefile and how to change the default target of make? The default goal of make is the first target whose name does not start with ‘.’ if .DEFAULT_GOAL is not set. Ref: make manual. To set the default…
Good tools to manage OCaml packages
ByQ AWhich tools to mange OCaml packages in my system (Linux)? I use OPAM to manage OCaml packages: http://opam.ocamlpro.com/index.html To install it: $ wget https://raw.githubusercontent.com/ocaml/opam/master/shell/opam_installer.sh $ sh ./opam_installer.sh /usr/local/bin More options are available here. To make opam settings take effect, append this to ~/.bashrc: eval `opam config env` Some frequent usages: opam list # List all…