Hi,
Would appreciate if someone could help me with the following requirement.
Say I have a directory where a file called abc_$timestamp.txt is created couple of times in a day.
So this directory would have files like
abc_2007-03-28-4-5-7.txt
abc_2007-03-28-3-5-7.txt... (4 Replies)
A Triva question.
What is the easy way to remove the double quotes in the file in the following format.
"asdfa","fdgh","qwer"
tr -d '\"' <filename >newfilename
mv newfilename oldfilename
This need to be handled in a script. Any better way to do this. Will sed be more effecient?
One... (3 Replies)
I want to remove the comma which is present within the double quoted string. All other commas which is present outside double quotes should be present.
Input : a,b,"cc,dd,ee",f,ii,"jj,kk",mmm
output : a,b,"ccddee",f,ii,"jjkk",mmm (3 Replies)
I would like to know how to replace a space delimiter with a ^_ (\037) delimiter and a double quote delimiter while maintaining the spaces inside the double quotes. The double quote delimiter is only used on text fields.
I'd prefer a one-liner, but could handle a function or script that accepts... (4 Replies)
Hi Experts ,
we have a CDC file where we need to get the latest record of the Key columns
Key Columns will be CDC_FLAG and SRC_PMTN_I
and fetch the latest record from the CDC_PRCS_TS
Can we do it with a single awk command.
Please help.... (3 Replies)
Hi,
I have a huge file which has Lacs of lines. File system got full.
I want your guys help to suggest me a solution so that I can remove all lines from that file but not last 50,000 lines. I want solution which can remove lines from existing file so that I can have some space left with. (28 Replies)
Hi,
I am little new to forum and new on unix side. I have a small issue below:
I am reading a file that has 5 columns something like below.
col1,col2,col3,col4,col5
Some records are having double quoted values something like below:
"value1","value2","value3","value4","value5"
I need... (8 Replies)
I Want to remove all the sub-directories except latest five in any given TGTDIR.
Is there a way to do so without making a cd to TGTDIR?
I have tried the following but not worked.
Thank you.
rm -rf `ls -t $TGTDIR | awk 'NR>5'` (20 Replies)
I have a file with random characters where every time a char occurs twice, one occurrence must be removed.
Eg.
asjkdhaSSd
Must become:
asjkdhaSd
Anybody has a SED script in mind to do it? (1 Reply)
Hi,
I've a requirement like, in a csv file of 30+ fields where all the columns are having double quotes I need to remove the double quotes from certain fields and certain field should remain as it is.
Eg:... (6 Replies)
Discussion started by: Krishnanth S
6 Replies
LEARN ABOUT CENTOS
gsl-histogram
GSL-HISTOGRAM(1) General Commands Manual GSL-HISTOGRAM(1)NAME
gsl-histogram - compute histogram of data on stdin
SYNOPSYS
gsl-histogram xmin xmax [n]
DESCRIPTION
gsl-histogram is a demonstration program for the GNU Scientific Library. It takes three arguments, specifying the upper and lower bounds
of the histogram and the number of bins. It then reads numbers from `stdin', one line at a time, and adds them to the histogram. When
there is no more data to read it prints out the accumulated histogram using gsl_histogram_fprintf. If n is unspecified then bins of inte-
ger width are used.
EXAMPLE
Here is an example. We generate 10000 random samples from a Cauchy distribution with a width of 30 and histogram them over the range -100
to 100, using 200 bins.
gsl-randist 0 10000 cauchy 30 | gsl-histogram -100 100 200 > histogram.dat
A plot of the resulting histogram will show the familiar shape of the Cauchy distribution with fluctuations caused by the finite sample
size.
awk '{print $1, $3 ; print $2, $3}' histogram.dat | graph -T X
SEE ALSO gsl(3), gsl-randist(1).
AUTHOR
gsl-histogram was written by Brian Gough. Copyright 1996-2000; for copying conditions see the GNU General Public Licence.
This manual page was added by the Dirk Eddelbuettel <edd@debian.org>, the Debian GNU/Linux maintainer for GSL.
GNU GSL-HISTOGRAM(1)