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What do the abbreviations etc and usr mean? - Ask Ubuntu As you suspected, etc is from etcetera, unhelpfully named for "where everything else goes", and usr was for "user applications" A lot of the detail on the history of the Filesystem Hierarchy Standard is documented on Wikipedia
What is the rationale for the ` usr` directory? - Ask Ubuntu What is the rationale for the "unix system resources", or usr directory, as described here, which duplicates many of the directory names under the root directory ? My purpose: I'm installing Ora
What is usr local bin? - Unix Linux Stack Exchange 125 usr local bin is for programs that a normal user may run The usr local hierarchy is for use by the system administrator when installing software locally It needs to be safe from being overwritten when the system software is updated It may be used for programs and data that are shareable amongst a group of hosts, but not found in usr
What is the difference between opt and usr local? This is a part where the FHS is slightly self-contradictory, as usr is defined to be read-only, but usr local needs to be read-write for local installation of software to succeed The SVR4 file system standard, which was the FHS' main source of inspiration, recommends avoiding usr local and using opt instead to overcome this issue
13. 04 - Where is usr local? - Ask Ubuntu Notice how usr local starts with backslash ? There's root directory from which you can access other directories; the image to keep in mind is the root directory is where root starts, and everything else is branching form it How to access the folder you need:
Linux error while loading shared libraries: cannot open shared object . . . Here are a few solutions you can try: ldconfig As AbiusX pointed out: If you have just now installed the library, you may simply need to run ldconfig sudo ldconfig ldconfig creates the necessary links and cache to the most recent shared libraries found in the directories specified on the command line, in the file etc ld so conf, and in the trusted directories ( lib and usr lib) Usually
linux - What is the difference between #! usr bin env bash and . . . #! usr bin env bash #lends you some flexibility on different systems #! usr bin bash #gives you explicit control on a given system of what executable is called In some situations, the first may be preferred (like running python scripts with multiple versions of python, without having to rework the executable line) But in situations where security is the focus, the latter would be preferred
Why do people write #! usr bin env python on the first line of a . . . Major use case of env: pyenv and other version managers One major use case of why you should use #! usr bin env python instead of just usr bin python is that of version managers with pyenv pyenv allows you to easily install multiple python versions on a single machine, to be able to better reproduce other projects without virtualization