Search results
Results from the WOW.Com Content Network
According to the Open Group Base Specifications, IFS is an abbreviation for "input field separators." [1] A newer version of this specification mentions that "this name is misleading as the IFS characters are actually used as field terminators."
Box-drawing characters therefore typically only work well with monospaced fonts. In graphical user interfaces, these characters are much less useful as it is more simple and appropriate to draw lines and rectangles directly with graphical APIs. However, they are still useful for command-line interfaces and plaintext comments within source code.
A common way to handle formatting with a custom data type is to format the custom data type value into a string, then use the %s specifier to include the serialized value in a larger message. Some printf-like functions allow extensions to the escape-character -based mini-language , thus allowing the programmer to use a specific formatting ...
In Unix and Unix-like operating systems, printf is a shell builtin (and utility program [2]) that formats and outputs text like the same-named C function. Originally named for outputting to a printer, it actually outputs to standard output. [3] The command accepts a format string, which specifies how to format values, and a list of values.
here doc with <<-a single space character (i.e. 0x20 ) is at the beginning of this line this line begins with a single tab character i.e 0x09 as does the next line the intended end was before this line and these were not processed by tr +++++ here doc with << a single space character (i.e. 0x20 ) is at the beginning of this line this line ...
A shell portability mode where command lines can be interpreted in conformance with the POSIX standard; Command parsing: Comments are ignored: Bourne-style # hashtag comments, and; Thompson-style : colon comments; Commands are parsed one line at a time: Control structures are honored, and; Backslash \ escapes are also honored at the ends of lines;
When it has completed its operation for the last file, paste will output a newline character and move on to the next line. paste exits after all streams return end of file. The number of lines in the output stream will equal the number of lines in the input file with the largest number of lines. Missing values are represented by empty strings.
The command-syntax is: tail [options] <filename> By default, tail will output the last 10 lines of its input to the standard output. With command line options, the amount of output and the units (lines, blocks or bytes) may be changed. In the following example only the last line of the reports is output: