search for: liners

I am trying to deduce the one liner for an rpm I am packaging to edit a php configuration file from within my spec. The line I am editing looks like: $conf['nagios_base'] = "/nagios/cgi-bin"; What are the escape requirements Perl needs from within the shell to search for this? As I have seen, the syntax is a mess, any pointers would be appreciated! thanks, jlc

I would like to ''exec'' an installation script ''onlyif'' an installation directory is empty. I tried using following bash one-liner however it didn''t work: <code> exec{$one_install_script: require => File[$one_install_script], onlyif => "[ \"$(/bin/ls -A $one_location)\" ] && exit 1 || exit 0" }

Dear All, I need some witty computer related proverbs or one liners that some of have used in the past as footers for your emails for example. I particularly remember a PERL based transliteration joke/footer that when run in PERL produces a witty output.... This is to fix a problem internally created by an over zealous salesman at my company pinning up A4 shee...

input: http://pastebin.com/raw.php?i=MqPXZwc3 output: http://pastebin.com/raw.php?i=8QCkp4yv it will be a long day.. :D could someone please help with it? i have to make a "one liner" that get's the input, and gives the mentioned output.

a1 is the first key in input. second column is x-axis and 3rd is y-axis and 4th is its corresponding key. Now for every key in 1st column I would like to calculate LR that gives p value. I tried to manage with a single key. But my problem is that How could I manage multiple keys in input. Thanx in advance input a1 1 2.5 x a1 2 3.5 x a1 3 4.5 x a1 1 2.6 x a1 2 3.8 x b1 1 4.6 y

Hi, I would like to write a one-line R code to create a 3-dim array, B, of dimension (n,n,m) from a matrix, A, of dimension (m,n) such that the i-th element of the 3-dim array, B[, , i] is the outer product of the i-th row of A. Thanks for any help, Ravi. [[alternative HTML version deleted]]

Trying to avoid a perl script which wouldn't be hard, but I am looking for an awk one liner that does a replacement, but only after it sees a key word on some line. Anyone know of that's easy to do? Thanks! jlc

every time I read the R release notes for the next release, I see many functions that I had forgotten about and many functions that I never knew existed to begin with. (who knew there were bibtex facilities in R? obviously, everyone except me.) I wonder whether there is a complete list of all R commands (incl the standard packages) somewhere, preferably each with its one-liner AND

Dear Sir/Madam, I have two vectors say x<-c(0,0,2.73,3.42,3.95,4.26) and y<-c(0.0,0.5,1.20,1.90,2.6,3.3). I want to fit y as a function of x and get the equation.Do I have to use glm() ? Rangesh [[alternative HTML version deleted]]

Hi, I have a line such as: myline <- " 0.100000 1.5000 0.6000 538 0.369404" and I would like to put the numbers into a vector. Some combination of tabs and spaces occur between the numbers. I tried: try1 <- strsplit(myline,"[[:blank:]]+") > try1 [[1]] [1] "" "0.100000" "1.5000"

This awk command pulls URLs from an apache config file, where $x is the config filename. awk '/:8008\/root/ {printf $3 "\t"}' $x The URL that is output by the script looks something like this: ajpv12://hostname.network.company.com:8008/root Is there a way to alter the output so it only shows "hostname" by itself? Do I need to pipe this through awk again to clean it

Peter, thanks, very nice, this will work for me... could you also help with setting up the code to run the on liner "approx(sort(x), seq(0,1,,length(x)), q)$y" on the rows of a data frame using my example above? So if I cbind z and res,? df<-cbind(z,res) the "x" in your one liner would be the first 4 column values of each row and "q" is the last (5fth) column

I''ve been hacking on this for awhile and am not even getting close. Consider the following... results = Sample.find(:all) total_counter = results.each{|result| #Add together result.counter} I just want to simply iterate through the list and sum the counter field for each row into an aggregation. I could do it in a full for loop, but is there a nice one liner I''m missing?

I needed to format numbers with commas to make it more human readable. Here''s how I did it. def commify(number) c = { :value => "", :length => 0 } r = number.to_s.reverse.split("").inject(c) do |t, e| iv, il = t[:value], t[:length] iv += '','' if il % 3 == 0 && il != 0 { :value => iv + e, :length =>

Dear dtrace Experts, I have seen some dtrace utilities like opensnoop and execsnoop etc. My interest is to write a simple script that can snoop the files which uses the 3 syscalls like open,create,unlink. I have gone through dtrace oneliners that can do the same : dtrace -n ''syscall::open*:entry { printf("%s %s",execname,copyinstr(arg0));}'' dtrace -n ''syscall::creat*:entry { printf("%s %s",execname,copyinstr(arg0));}'' dtrace -n ''syscall::unlink*:entry { printf(&quo...

I am developing a PHP script and want to use R to get the probability of a t-value. This just requires that I issue one R statement and output the result. The problem I am having is that R will accept batch input but I am not sure that it will accept a "one-liner" (i.e., "/usr/local/bin/R qt(.975, 20)" does not work but you get the idea). Is there a way to pass R a

Peter, thanks, very nice, this will work for me... could you also help with setting up the code to run the on liner "approx(sort(x), seq(0,1,,length(x)), q)$y" on the rows of a data frame using my example above? So if I cbind z and res, df<-cbind(z,res) the "x" in your one liner would be the first 4 column values of each row and "q" is the last (5fth) column

Hi, Following expression returns only the first element ifelse(T, c(1,2,3), c(5,6)) However I am looking for some one-liner expression like above which will return the entire vector. Is there any way to achieve this?

I have the code below which gives me what I want for temp based on logvec but I was wondering if there was a shorter way ( i.e : a one liner ) without having to initialize temp to zeros. This is purely for learning purposes. Thanks. logvec <- c(TRUE,FALSE,FALSE,TRUE,FALSE,FALSE,TRUE,FALSE) temp<-numeric(length(invec)) temp[invec]<-which(invec) temp [1] 1 0 0 4 0 0 7 0 obviously, the

Hello, I am looking for an elegant one-liner for the following operation: x <- rnorm(10) y <- runif(10) c(mean(x)-mean(y), mean(x)+mean(y)) I thought about apply(data.frame(x, y), 2, mean) but I don't know how to apply the +- operation on the result of apply. Thanks, *S* -- Sascha Vieweg, saschaview at gmail.com