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GNU Emacs has command line options to specify either a file to load and execute, or an Emacs Lisp function may be passed in from the command line. Emacs will start up, execute the passed-in file or function, print the results, then exit. [35] The shebang line #!/usr/bin/emacs --script allows the creation of standalone scripts in Emacs Lisp. [36]
Emacs (/ ˈ iː m æ k s / ⓘ), originally named EMACS (an acronym for "Editor Macros"), [1] [2] [3] is a family of text editors that are characterized by their extensibility. [4] The manual for the most widely used variant, [5] GNU Emacs, describes it as "the extensible, customizable, self-documenting, real-time display editor". [6]
Removes sections from each line of files expand: Converts tabs to spaces fmt: Simple optimal text formatter fold: Wraps each input line to fit in specified width head: Outputs the first part of files join: Joins lines of two files on a common field md5sum: Computes and checks MD5 message digest nl: Numbers lines of files numfmt: Reformat numbers od
Numbers File system 5.3 MB Source Code Control System: C: Changeset File Numbers NFS: 1.3 MB StarTeam: C++, C, Java: Snapshot File and Tree MD5 hashes custom, TCP/IP Unknown Subversion: C: Changeset and Snapshot Tree Numbers custom (svn), custom over ssh, HTTP and SSL (using WebDAV) 41 MB Surround SCM: C++: Changeset File and Tree Numbers TCP ...
While the line numbers are sequential in this example, in the very first "complete but simple [Fortran] program" published the line numbers are in the sequence 1, 5, 30, 10, 20, 2. [4] Line numbers could also be assigned to fixed-point variables (e.g., ASSIGN i TO n) for referencing in subsequent assigned GO TO statements (e.g., GO TO n,(n1,n2 ...
In Emacs, the editing area can be split into separate areas called windows, each displaying a different buffer. A buffer is a region of text loaded into Emacs' memory (possibly from a file) which can be saved into a text document. Users can press the default C-x 2 key binding to open a new window. This runs the Emacs Lisp function split-window ...
XEmacs is a graphical- and console-based text editor which runs on almost any Unix-like operating system as well as Microsoft Windows.XEmacs is a fork, based on a version of GNU Emacs from the late 1980s.
The unit of operation is a set of lines (associative range) and individual lines are identified with a line number in the range 0.0 to 99999.999; leading zeros in the integer part and trailing zeros in the fractional part may be omitted. The user can specify a line number in any of the following ways Absolute line number: ddddd.ddd