Feb 23, 2019 · /usr ( from English "User System Resources" ) - catalogue/directory in UNIX-like systems, containing dynamically combined programs, user files and manually-installed …

/usr, as you guessed, is the directory where "user" files reside; it contains all of the items that are not part of the system itself such as user programs and data. System programs are stored in …

This makes a separate directory under /opt for every package you install, and that directory has all the requisites for the package (as opposed to /usr or /usr/local, where binaries for all the …

This is a part where the FHS is slightly self-contradictory, as /usr is defined to be read-only, but /usr/local/bin needs to be read-write for local installation of software to succeed. The SVR4 file …

Nov 3, 2015 · /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 …

The informal rule was: "essential" stuff go to /bin, "the rest" goes to /usr/bin. Same with /lib. It was not long before /usr became crowded with system-related directories mixed with actual users' …

/usr/bin is for distribution-managed normal user programs. There is a /usr/sbin with the same relationship to /usr/bin as /sbin has to /bin. /usr/local/bin is for normal user programs not …

cd /usr/local will get you there. You do need root privileges to edit files there, in which case you can invoke sudo, be very cautious about meddling with files however in the /usr directory and …

The /usr/bin/env form of shebang line has one further special property. Before looking for installed Python interpreters, this form will search the executable PATH for a Python executable. This …

#!/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 …