extract

问题 -inul command prevents error-box from coming up in WinRar command line. Is there any equivalent command for 7Gz.exe? 回答1: 7-Zip writes all its messages to stdout , including error and warning messages. This means you can collect all the output from it by redirecting stdout it to a file. A command like the following will redirect all output (including from stderr) to Log.txt: 7za a Test.7z *.* >Log.txt 2>&1 来源： https://stackoverflow.com/questions/21118929/how-to-hide-error-messages-in-7zip

问题 I have a text file in a Solaris workstation. Please see a sample of contents of the file below (The number of entries can vary): CMSBC01 TELNET_APG40 CMSBC01_1 TELNET_APG40 CMSBC03 TELNET_APG40 CMSBC03_1 TELNET_APG40 GMSC1 TELNET_APG40 GMSC2 SSH_APG40 I am only interested about the 1st column entries. I want the output to be : CMSBC01 CMSBC01_1 CMSBC03 CMSBC03_1 GMSC1 GMSC2 I have tried awk -F\; '{print $1}' /home/els/axelist.txt and also: cat axelist.txt | sed 's/ *//' But still not able to

问题 I need help to extract specified color (red for example) from an image then cropping objects which contain this color. This part is so important in my graduate project which tracking laser gesture in projector screen. 回答1: I'm really not sure I understood you correctly, but here is a code that makes only red parts of an image visible. You can change it to only red parts invisible by changing > to < when comparing to 200. You can also play with the number 200 to see what threshold is good for

问题 How can i extract all words start from symbol '$' from a text file? File a (ascii) --> @ExtendedAttr = nvp_add(@ExtendedAttr, "severity", $severity, "description", $description, "eventID", $eventID, "eventURL", $eventURL, "alertLevel", $alertLevel, "eventStart", $eventStart, "eventSourceCount", $eventSourceCount, "eventSourceTable", $eventSourceTable, "eventDestCount", $eventDestCount) I want the output to be like this (all in new line) : $severity $description $eventID $eventURL $alertLevel

问题 So As you can see I have a price and Day columns below Price Day 2 1 5 2 8 3 11 4 14 5 17 6 20 7 23 8 26 9 29 10 32 11 35 12 38 13 41 14 44 15 47 16 50 17 53 18 56 19 59 20 I then want the output below Difference Day 12 5 15 10 15 15 15 20 So now I have the difference in prices every 5 days...it just basically subtracts the 5th day with the first day.....and then the 10th day with the 5th day etc.... I already made a code that will seperate my data into 5 day intervals...but I want the code

问题 its pretty hard to find a title for my question because its very specific. My problem is: I have around 9000 files of data collected over different periods. The filenames contain that periods and I only want to load that files into R, that contain at least 17/18 years of data collection. I created a testlist to show what I mean: list = c("AT0ACH10000700100dymax.1-1-1993.31-12-2003", "AT0ILL10000700500dymax.1-1-1990.31-12-2011", "AT0PIL10000700500dymax.1-1-1992.31-12-2011",

问题 I am grabbing the source of a page useing curl, and want to extract a text from a specific tag. the text is between the unique tag: href="http://www.website.com/some/unique/page.php?q=xyz">TEXT</a> What I did was: curl -s "http://www.website.com" | sed 's|PATTERN|\1|' Where PATTERN is one of the many regex patterns I have tried, one of which: href="http://www.website.com/some/unique/page.php?q=xyz">\(.*\)</a> But for some reasons, I couldn't get it to work. I either get the full page source

问题 --update-- maybe someone can assume another possibility so split a .docx document into its chapters, importing .docx to R first of all, I want to give thanks for this awesome forum. I found several solutions for my upcoming issues. But this time I haven't found anything... However, I have a complex .docx document, containing an index, formatted to .xml . library(XML) xmlfile <- xmlParse("C:/Users/Documents/stihl.xml", options = HUGE) topxml <- xmlRoot(xmlfile) topxml <- xmlSApply(topxml,

问题 I'm part of a non-profit that sends letters to encourage hundreds of people in prison. They are often transferred unexpectedly, with no time to give notice of address change. However, each person's location while incarcerated is kept up-to-date and publicly accessible on the state government's website. I am trying to write VBA that goes through my "contact" list and visits each state government's prisoner location website (based on each prisoner's ID), then extracts each person's location

问题 Im getting interval times via: SELECT time_col - lag(time_col) OVER (ORDER BY whatever) FROM myTable where conditions This returns a table like this: 00:00:38 00:05:10 00:02:05 ... I want to have the time in seconds like this: 38 310 125 ... Here is my approach: SELECT EXTRACT(epoch from dt) from (SELECT time_col - lag(time_col) OVER (ORDER BY whatever) FROM myTable where conditions) as dt dt should be the table with the difference times (intervals). However I get the following error: Error: