Windows PowerShell command on Get-command formats

Manual Pages for UNIX Operating System command usage for man formats

Standards, Environments, and Macros formats(5)

NAME

formats - file format notation

DESCRIPTION

Utility descriptions use a syntax to describe the data

organization within files-stdin, stdout, stderr, input

files, and output files-when that organization is not other-

wise obvious. The syntax is similar to that used by the printf(3C) function. When used for stdin or input file descriptions, this syntax describes the format that could have been used to write the text to be read, not a format that could be used by the scanf(3C) function to read the input file. Format The description of an individual record is as follows: "", [, , ..., ] The format is a character string that contains three types of objects defined below: characters Characters that are not escape sequences or conversion specifications, as described

below, are copied to the out-

put.

escape sequences Represent non-graphic charac-

ters. conversion specifications Specifies the output format of each argument. (See below.) The following characters have the following special meaning in the format string: `` '' (An empty character position.) One or more blank characters. /\ Exactly one space character.

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The notation for spaces allows some flexibility for applica-

tion output. Note that an empty character position in format represents one or more blank characters on the output (not

white space, which can include newline characters). There-

fore, another utility that reads that output as its input must be prepared to parse the data using scanf(3C), awk(1), and so forth. The character is used when exactly one space character is output. Escape Sequences The following table lists escape sequences and associated actions on display devices capable of the action. Sequence Character Terminal Action

________________________________________________________________

\\ backslash None. \a alert Attempts to alert the user through audible or visible notification. \b backspace Moves the printing position to one column before the current position, unless the current position is the start of a line.

\f form-feed Moves the printing position to

the initial printing position of the next logical page. \n newline Moves the printing position to the start of the next line.

\r carriage-return Moves the printing position to

the start of the current line. \t tab Moves the printing position to the next tab position on the current line. If there are no more tab positions left on the

line, the behavior is unde-

fined.

\v vertical-tab Moves the printing position to

the start of the next vertical tab position. If there are no more vertical tab positions left on the page, the behavior is undefined. Conversion Specifications

Each conversion specification is introduced by the percent-

sign character (%). After the character %, the following

appear in sequence:

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flags Zero or more flags, in any order, that modify the meaning of the conversion specification. field width An optional string of decimal digits to specify a minimum field width. For an output field, if the converted value has fewer bytes than the field width, it is padded on the left (or right, if the

left-adjustment flag (-),

described below, has been given to the field width). precision Gives the minimum number of digits to appear for the d, o, i, u, x or X conversions (the field is padded with leading zeros), the number of digits to appear after the radix

character for the e and f conver-

sions, the maximum number of sig-

nificant digits for the g conver-

sion; or the maximum number of bytes to be written from a string in s conversion. The precision takes the form of a period (.) followed by a decimal digit string; a null digit string is treated as zero. conversion characters A conversion character (see below)

that indicates the type of conver-

sion to be applied. flags The flags and their meanings are:

- The result of the conversion is left-justified

within the field. + The result of a signed conversion always begins

with a sign (+ or -).

If the first character of a signed conversion is not a sign, a space character is prefixed to the result. This means that if the space character

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and + flags both appear, the space character flag is ignored.

# The value is to be converted to an alternative

form. For c, d, i, u, and s conversions, the behaviour is undefined. For o conversion, it increases the precision to force the first digit

of the result to be a zero. For x or X conver-

sion, a non-zero result has 0x or 0X prefixed to

it, respectively. For e, E, f, g, and G conver-

sions, the result always contains a radix char-

acter, even if no digits follow the radix char-

acter. For g and G conversions, trailing zeros are not removed from the result as they usually are.

0 For d, i, o, u, x, X, e, E, f, g, and G conver-

sions, leading zeros (following any indication of sign or base) are used to pad to the field width; no space padding is performed. If the 0

and - flags both appear, the 0 flag is ignored.

For d, i, o, u, x and X conversions, if a preci-

sion is specified, the 0 flag is ignored. For other conversions, the behaviour is undefined. Conversion Characters Each conversion character results in fetching zero or more

arguments. The results are undefined if there are insuffi-

cient arguments for the format. If the format is exhausted while arguments remain, the excess arguments are ignored. The conversion characters and their meanings are: d,i,o,u,x,X The integer argument is written as signed decimal (d or i), unsigned octal (o),

unsigned decimal (u), or unsigned hexade-

cimal notation (x and X). The d and i specifiers convert to signed decimal in the

style [-]dddd. The x conversion uses the

numbers and letters 0123456789abcdef and the X conversion uses the numbers and letters 0123456789ABCDEF. The precision component of the argument specifies the minimum number of

digits to appear. If the value being con-

verted can be represented in fewer digits than the specified minimum, it is expanded with leading zeros. The default precision is 1. The result of converting a zero value

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with a precision of 0 is no characters. If

both the field width and precision are omit-

ted, the implementation may precede, follow or precede and follow numeric arguments of types d, i and u with blank characters; arguments of type o (octal) may be preceded with leading zeros.

The treatment of integers and spaces is dif-

ferent from the printf(3C) function in that

they can be surrounded with blank charac-

ters. This was done so that, given a format such as:

"%d\n",

the implementation could use a printf() call such as:

printf("%6d\n", foo);

and still conform. This notation is thus somewhat like scanf() in addition to printf().

f The floating point number argument is writ-

ten in decimal notation in the style

[-]ddd.ddd, where the number of digits after

the radix character (shown here as a decimal

point) is equal to the precision specifica-

tion. The LC_NUMERIC locale category deter-

mines the radix character to use in this format. If the precision is omitted from the argument, six digits are written after the

radix character; if the precision is expli-

citly 0, no radix character appears.

e,E The floating point number argument is writ-

ten in the style [-]d.ddde+_dd (the symbol +_

indicates either a plus or minus sign), where there is one digit before the radix character (shown here as a decimal point) and the number of digits after it is equal

to the precision. The LC_NUMERIC locale

category determines the radix character to use in this format. When the precision is missing, six digits are written after the radix character; if the precision is 0, no radix character appears. The E conversion character produces a number with E instead

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of e introducing the exponent. The exponent

always contains at least two digits. How-

ever, if the value to be written requires an exponent greater than two digits, additional exponent digits are written as necessary.

g,G The floating point number argument is writ-

ten in style f or e (or in style E in the case of a G conversion character), with the

precision specifying the number of signifi-

cant digits. The style used depends on the value converted: style g is used only if the exponent resulting from the conversion is

less than -4 or greater than or equal to the

precision. Trailing zeros are removed from the result. A radix character appears only if it is followed by a digit. c The integer argument is converted to an unsigned char and the resulting byte is written. s The argument is taken to be a string and bytes from the string are written until the end of the string or the number of bytes indicated by the precision specification of the argument is reached. If the precision is omitted from the argument, it is taken to be infinite, so all bytes up to the end of the string are written.

% Write a % character; no argument is con-

verted.

In no case does a non-existent or insufficient field width

cause truncation of a field; if the result of a conversion is wider than the field width, the field is simply expanded to contain the conversion result. The term field width should not be confused with the term precision used in the

description of %s.

One difference from the C function printf() is that the l

and h conversion characters are not used. There is no dif-

ferentiation between decimal values for type int, type

long, or type short. The specifications %d or %i should be

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interpreted as an arbitrary length sequence of digits. Also, no distinction is made between single precision and double precision numbers (float or double in C). These are simply referred to as floating point numbers. Many of the output descriptions use the term line, such as:

"%s",

Since the definition of line includes the trailing newline character already, there is no need to include a \n in the format; a double newline character would otherwise result.

EXAMPLES

Example 1 To represent the output of a program that prints a date and time in the form Sunday, July 3, 10:02, where and are strings:

"%s,/\%s/\%d,/\%d:%.2d\n",,,,,

Example 2 To show pi written to 5 decimal places:

"pi/\=/\%.5f\n",

Example 3 To show an input file format consisting of five

colon-separated fields:

"%s:%s:%s:%s:%s\n",,,,,

Manual Pages for UNIX Operating System command usage for man formats

Standards, Environments, and Macros formats(5)

NAME

formats - file format notation

DESCRIPTION

Standards, Environments, and Macros formats(5)

Standards, Environments, and Macros formats(5)

Standards, Environments, and Macros formats(5)

Standards, Environments, and Macros formats(5)

Standards, Environments, and Macros formats(5)

Standards, Environments, and Macros formats(5)

EXAMPLES

SEE ALSO