I'm new at scripting but I thought I was getting pretty good at it. I've hit a snag. I try to use expr to compute a fraction say: expr 3 / 4, and I'm getting zero. I guess it's just truncating to the integer, in this case 0, but I need the decimal 0.75. What can I do to compute this value in... (2 Replies)
I have a large CSV files (e.g. 2 million records) and am hoping to do one of two things. I have been trying to use awk and sed but am a newbie and can't figure out how to get it to work. Any help you could offer would be greatly appreciated - I'm stuck trying to remove the colon and wildcards in... (6 Replies)
HI
i have following problem,
i need to use split command to split files each should be cca 700 lines but i dont know how to inplement it in the scripts becasuse each time the origin file will be various size ,
any body got any idea
cheers (2 Replies)
I analysed disk performance with blktrace and get some data:
read:
8,3 4 2141 2.882115217 3342 Q R 195732187 + 32
8,3 4 2142 2.882116411 3342 G R 195732187 + 32
8,3 4 2144 2.882117647 3342 I R 195732187 + 32
8,3 4 2145 ... (1 Reply)
Hi,
I have data in the following form:
AB001 10
AB002 9
AB003 9
etc
AB200 5
What I need to do is sum up the second value according to groups of the first, i.e. AB001 to AB030 the total being X, AB031 to AB050 the total being Y etc (there are 5 AB ranges of different sizes). I'm sure... (3 Replies)
Hi all,
Thanks in Advance , i am very new to programming part in script i think using some caluations+ sed command only we can do this process in script.
for exampl:
i have file in that one line is like this
using sed i can replace the date and all but my requirement is
The... (3 Replies)
Hi,
I need a help with arithmetic calculations in my script. I have two variables: a=17; b=1712
I want to perform ($a/$b)*100 with two decimals in the result.
I tried with following:
res=$((100*a/b))
res=`echo "scale=2; $a / $b" | bc`
But I am not getting the decimal values.... (4 Replies)
I have 2 numbers
xmin = 0.369000018
xmax = 0.569000006
and want to calculate
(xmax- xmin) / 5.0
I have tried using $(( )) but is always giving an error (8 Replies)
I am running the below bash loop on all the files of a specific type (highlighted in bold) in a directory. There are 4 awk commands that use the input files to search another and look for a match. The input files range from 27 - 259 and are a list of names. The file that is searched is... (11 Replies)
The below bash will untar each tar.bz2 folder in the directory, then remove the tar.bz2.
Each of the tar.bz2 folders ranges from 40-75GB and currently takes ~2 hours to extract. Is there a way to speed up the extraction process?
I am using a xeon processor with 12 cores. Thank you :).
... (7 Replies)
Discussion started by: cmccabe
7 Replies
LEARN ABOUT X11R4
iconv
ICONV(1) Linux Programmer's Manual ICONV(1)NAME
iconv - character set conversion
SYNOPSIS
iconv [OPTION...] [-f encoding] [-t encoding] [inputfile ...]
iconv -l
DESCRIPTION
The iconv program converts text from one encoding to another encoding. More precisely, it converts from the encoding given for the -f
option to the encoding given for the -t option. Either of these encodings defaults to the encoding of the current locale. All the input-
files are read and converted in turn; if no inputfile is given, the standard input is used. The converted text is printed to standard out-
put.
The encodings permitted are system dependent. For the libiconv implementation, they are listed in the iconv_open(3) manual page.
Options controlling the input and output format:
-f encoding, --from-code=encoding
Specifies the encoding of the input.
-t encoding, --to-code=encoding
Specifies the encoding of the output.
Options controlling conversion problems:
-c When this option is given, characters that cannot be converted are silently discarded, instead of leading to a conversion error.
--unicode-subst=formatstring
When this option is given, Unicode characters that cannot be represented in the target encoding are replaced with a placeholder
string that is constructed from the given formatstring, applied to the Unicode code point. The formatstring must be a format string
in the same format as for the printf command or the printf() function, taking either no argument or exactly one unsigned integer
argument.
--byte-subst=formatstring
When this option is given, bytes in the input that are not valid in the source encoding are replaced with a placeholder string that
is constructed from the given formatstring, applied to the byte's value. The formatstring must be a format string in the same format
as for the printf command or the printf() function, taking either no argument or exactly one unsigned integer argument.
--widechar-subst=formatstring
When this option is given, wide characters in the input that are not valid in the source encoding are replaced with a placeholder
string that is constructed from the given formatstring, applied to the byte's value. The formatstring must be a format string in the
same format as for the printf command or the printf() function, taking either no argument or exactly one unsigned integer argument.
Options controlling error output:
-s, --silent
When this option is given, error messages about invalid or unconvertible characters are omitted, but the actual converted text is
unaffected.
The iconv -l or iconv --list command lists the names of the supported encodings, in a system dependent format. For the libiconv implementa-
tion, the names are printed in upper case, separated by whitespace, and alias names of an encoding are listed on the same line as the
encoding itself.
EXAMPLES
iconv -f ISO-8859-1 -t UTF-8
converts input from the old West-European encoding ISO-8859-1 to Unicode.
iconv -f KOI8-R --byte-subst="<0x%x>"
--unicode-subst="<U+%04X>"
converts input from the old Russian encoding KOI8-R to the locale encoding, substituting an angle bracket notation with hexadecimal
numbers for invalid bytes and for valid but unconvertible characters.
iconv --list
lists the supported encodings.
SEE ALSO iconv_open(3), locale(7)GNU January 22, 2006 ICONV(1)