Civil Rights
Movements, leaders, victories and the continuing fight for equality.
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Explore the people, places, events, achievements, struggles and stories that shaped our journey.
Movements, leaders, victories and the continuing fight for equality.
Innovation, patents, science, technology and world-changing contributions.
Pioneers, champions, Negro Leagues, records, activism and excellence.
Meet the people whose lives, choices and achievements shaped the journey.
Black towns, communities, institutions and places where history happened.
Moments that changed communities, movements, institutions and the nation.
Wilmington, North Carolina once had a thriving Black middle class and an elected interracial government. In 1898 white supremacists used violence to overthrow that government, kill Black residents and drive many others from the city.
MORE →Reflects the personal views, recollections, and perspective of the author, Mike Davis.
This is a personal recollection on the Move fire on May 13, 1985
| unlink | |
|---|---|
| Operating system | Unix and Unix-like |
| Platform | Cross-platform |
| Type | Command |
In Unix-like operating systems, unlink is a system call and a command line utility to delete files. The program directly interfaces the system call, which removes the file name and (but not on GNU systems) directories like rm and rmdir.[1] If the file name was the last hard link to the file, the file itself is deleted as soon as no program has it open.[2]
Unlike the rm utility, the unlink utility only accepts one argument, which can be desirable to guard against accidental multi-deletions.[3]
It also appears in the PHP, Node.js, R, Perl and Python standard libraries in the form of the unlink() built-in function. Like the Unix utility, it is also used to delete files.[4][5][6][7]
To delete a file named foo, one could type:
% unlink foo
In PHP, one could use the following function to do the same:
unlink("foo");
The Perl syntax is identical to the PHP syntax, save for the parentheses:
unlink "foo";
In Node.js it is almost the same as the others:
fs.unlink("foo", callback);
In R (with the S language compatibility):
unlink("foo")
#Comment: using the inside argument 'recursive = TRUE', directories can be deleted
Similarly in Python:
os.unlink("foo")
{{cite web}}: CS1 maint: deprecated archival service (link)
| File system | |
|---|---|
| Processes | |
| User environment | |
| Text processing | |
| Shell builtins | |
| Searching | |
| Documentation | |
| Software development | |
| Miscellaneous | |
| |
Source: Wikipedia. Article content is retrieved live through the MediaWiki API.
In computing, rmdir (or rd) is a command which will remove an empty directory on various operating systems.
In Unix-like operating systems, unlink is a system call and a command line utility to delete files. The program directly interfaces the system call, which removes the file name and (but not on GNU systems) directories like rm and rmdir. If the file name was the last hard link to the file, the file itself is deleted as soon as no program has it open. Unlike the rm utility, the unlink utility only accepts one argument, which can be desirable to guard against accidental multi-deletions. It also appears in the PHP, Node.js, R, Perl and Python standard libraries in the form of the unlink() built-in function. Like the Unix utility, it is also used to delete files.
Stand-alone shell (sash) is a Unix shell designed for use in recovering from certain types of system failures and errors. The built-in commands of sash have all libraries linked statically, so unlike most shells on Linux, the standard UNIX commands do not rely on external libraries. For example, the copy command (cp) requires libc.so and ld-linux.so when built from GNU Core Utilities on Linux. If any of these libraries get corrupted, the coreutils cp command would not work; however, in sash, the built-in command, cp, would be unaffected. In earlier times, most critical commands (including shells) in /sbin or even /bin were statically linked for this purpose, whereas in /usr/sbin and /usr/bin you would find the more feature-rich versions that were dynamically linked. This is not common anymore and as such, statically linked shells with built-in commands have become more important. Sash has the following built-in commands: ar, chattr, chgrp, chmod, chown, cmp, cp, dd, echo, ed, exec, grep, file, find, gunzip, gzip, kill, losetup, ln, ls, lsattr, mkdir, mknod, rmdir, sum, sync, tar, touch, umount, where The Sash shell has also been ported to work with Android in a terminal-interface.
Apache Ant is a software tool for automating software build processes for Java applications which originated from the Apache Tomcat project in early 2000 as a replacement for the Make build tool of Unix. It is similar to Make, but is implemented using the Java language and requires the Java platform. Unlike Make, which uses the Makefile format, Ant uses XML to describe the code build process and its dependencies. Released under an Apache License by the Apache Software Foundation, Ant is an open-source project.
Before the 1921 destruction of Tulsa’s Greenwood District, Black residents had created a remarkable center of business and community life. The district included stores, professional offices, entertainment venues and homes owned by Black citizens. Understanding Greenwood means learning what was built—not only what was burned.
MORE →Madam C.J. Walker
