Is there a command that sets a variable length?
I have a input of a variable length field but my output for that field needs to be set to 32 char.
Is there such a command?
I am on a sun box running ksh
Thanks (2 Replies)
Dear All,
1.txt (tab in between each value in a line)
a b c
a b c
a c d
you can see below, why with ~ i can output with tab, but = cannot?
# awk -F'\t' '$2 ~ /b/' 1
a b c
a b c
# awk -F'\t' '$2 = "b"' 1
a b c
a b c
a b d
... (1 Reply)
Hello Everyone,
I am stuck with one issue while working on abstract flat file which i have to use as input and load data to table.
Input Data-
------ ------------------------ ---- -----------------
WFI001 Xxxxxx Control Work Item A Number of Records
------ ------------------------... (5 Replies)
In awk, how do I print all fields with a specified output field separator?
I have tried the following, which does not print the output FS:
echo a b c d | awk 'BEGIN{OFS = ";"}{print $0}' (3 Replies)
Hi all,
I have a requirement to replace a field with a character as per the length of the field.
Suppose i have a file where second field is of 20 character length. I want to replace second field with 20 stars (*). like ********************
As the field is not a fixed one, i want to do the... (2 Replies)
Need an awk script to calculate the percentage of value field and replace
I have a input file called file.txt with the following content:
john|622.5674603562933|8|br:1;cn:3;fr:1;jp:1;us:2
andy|0.0|12|**:3;br:1;ca:2;de:2;dz:1;fr:2;nl:1
in fourth filed of input file, calulate percentage of each... (1 Reply)
I have a input file called file.txt with the following content:
john|622.5674603562933|8|br:1;cn:3;fr:1;jp:1;us:2
andy|0.0|12|**:3;br:1;ca:2;de:2;dz:1;fr:2;nl:1
in fourth filed of input file, calulate percentage of each sub filed seperated by ; semicolon and replace value with percentage .
i... (11 Replies)
I have several questions about using awk. I'm hoping someone could lend me a hand. (I'm also hoping that my questions make sense.)
I have a file that contains pipe separated data. Each line has similar data but the number of fields and the field position on each line is variable. ... (3 Replies)
The awk below produces the current output, which will add +1 to $3. However, I am trying to add the length of the matching characters between $5 and $6 to $3. I have tried using sub as a variable to store the length but am not able to do so correctly. I added comments to each line and the... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT FREEBSD
nan
NAN(3) BSD Library Functions Manual NAN(3)NAME
nan, nanf, nanl -- quiet NaNs
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h>
double
nan(const char *s);
float
nanf(const char *s);
long double
nanl(const char *s);
DESCRIPTION
The NAN macro expands to a quiet NaN (Not A Number). Similarly, each of the nan(), nanf(), and nanl() functions generate a quiet NaN value
without raising an invalid exception. The argument s should point to either an empty string or a hexadecimal representation of a non-nega-
tive integer (e.g., "0x1234".) In the latter case, the integer is encoded in some free bits in the representation of the NaN, which some-
times store machine-specific information about why a particular NaN was generated. There are 22 such bits available for float variables, 51
bits for double variables, and at least 51 bits for a long double. If s is improperly formatted or represents an integer that is too large,
then the particular encoding of the quiet NaN that is returned is indeterminate.
COMPATIBILITY
Calling these functions with a non-empty string isn't portable. Another operating system may translate the string into a different NaN
encoding, and furthermore, the meaning of a given NaN encoding varies across machine architectures. If you understood the innards of a par-
ticular platform well enough to know what string to use, then you would have no need for these functions anyway, so don't use them. Use the
NAN macro instead.
SEE ALSO fenv(3), ieee(3), isnan(3), math(3), strtod(3)STANDARDS
The nan(), nanf(), and nanl() functions and the NAN macro conform to ISO/IEC 9899:1999 (``ISO C99'').
BSD December 16, 2007 BSD