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  • How can I get awk input from a file and add my own text to the data?

    - by xs2dhillon
    Assume that I have a text file separated by colons. I understand how to display the entire text file or any specific column using awk. However, what I want to do is to get the awk output and then display it by adding my own text using a shell script? For example, assume that my text file is: England:London:GMT USA:Washington:EST France:Paris:GMT What I want to do is to display this input into the below format: COUNTRY: England CAPITOL: London TIMEZONE: GMT COUNTRY: USA CAPITOL: Washington TIMEZONE: EST COUNTRY: France CAPITOL: Paris TIMEZONE: GMT

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  • How to run command in the background and notify me via email when done

    - by Abs
    Hello all, I have the following command which will take ages to run (couple of hours). I would like to make it a background process and for it to send me an email when its done. For the cherry on the top, any errors it encountered should write to a text file when an error has occurred? find . -type f -name "*.rm" -exec ./rm2mp3.sh \{} \; -exec rm \{} \; How can I do this with my above command?

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  • Python vs Groovy vs Ruby? (based on criteria listed in question)

    - by Prembo
    Considering the criteria listed below, which of Python, Groovy or Ruby would you use? Criteria (Importance out of 10, 10 being most important) Richness of API/libraries available (eg. maths, plotting, networking) (9) Ability to embed in desktop (java/c++) applications (8) Ease of deployment (8) Ability to interface with DLLs/Shared Libraries (7) Ability to generate GUIs (7) Community/User support (6) Portability (6) Database manipulation (3) Language/Semantics (2)

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  • Writing a script with the cmd prompt.

    - by Josh
    I'm trying to make a script that will place a list (in a .csv file) of processes that are running that take up more than 10 mb of RAM and shows the time + date the script was run. My teacher did this during his lecture but I can't remember how he did it. Just trying to figure out how to be better at IT. So my question is, can anyone help me with this? I don't even know where to start.

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  • How to perform an action when a remote (Http) file changed?

    - by ZeissS
    Hi, I want to create a script that checks an URL and perform an action (download + unzip) when the "Last-Modified" header of the remote file changed. I thought about fetching the header with curl but then I have to store it somewhere for each file and perform a date comparison. Does anyone have a different idea using (mostly) standard unix tools? thanks

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  • grep from a log file to get count

    - by subodh1989
    I have to get certain count from files. The grep statement i am using is like this : counter_pstn=0 completed_count_pstn=0 rec=0 for rec in `(grep "merged" update_completed*.log | awk '{print $1}' | sed 's/ //g' | cut -d':' -f2)` do if [ $counter_pstn -eq 0 ] then completed_count_pstn=$rec else completed_count_pstn=$(($completed_count_pstn+$rec)) fi counter_pstn=$(($counter_pstn+1)) done echo "Completed Orders PSTN Primary " $completed_count_pstn But the log file contains data in this format : 2500 rows merged. 2500 rows merged. 2500 rows merged. 2500 rows merged.2500 rows merged. 2500 rows merged. 2500 rows merged. As a result , it is missing out the count of one merge(eg on line 4 of output).How do i modify the grep or use another function to get the count. NOTE that the 2500 number maybe for different logs. So we have to use "rows merged" pattern to get the count. i have tried -o ,-w grep options,but it is not working. Expected output from above data: 17500 Actual output showing : 15000

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  • Control Debug Level in C++ Library - Linux

    - by rursw1
    Hi all, I have a C++ library, which is used in both Linux and Windows. I want to enable the user to control the debug level (0 - no debug, 1 - only critical errors ... 5 - informative debug information). The debug log is printed to a text file. In Windows, I can do it using a registry value (DWORD DebugLevel). What can be a good replacement which works also for Linux? (Without 3rd party tools, for example Linux "registry"). Thanks in advance!

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  • jQuery .eq(x) returns different element in IE than in FF/Chrome

    - by bt
    I am using the .eq() method to select a specific child element of a known element. It appears that the element indices are different in IE and in Chrome/FF, as .eq(2) returns different values depending on browser. (The element I'm looking for shows up as .eq(2) in FF/Chrome, but .eq(3) in IE) For example, alert($(this).parent().children().eq(2).text()); shows different results depending on the browser. Is there a better way of doing this?

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  • Using // in a <script>'s source

    - by Dan Beam
    Hello fellow front-end web h4X0|2s, I was wondering if anyone had any resources, proof, or personal experience in using the age-old http/https JavaScript hack: <script src="//someserver.com/js/script.js"></script> Has anyone encountered issues in any of these browsers (IE 5.5+, FF2+, Chrome, Opera 9+, Safari 3+)? Has anybody had success stories? Thank you for your help.

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  • Using directory traversal attack to execute commands

    - by gAMBOOKa
    Is there a way to execute commands using directory traversal attacks? For instance, I access a server's etc/passwd file like this http://server.com/..%01/..%01/..%01//etc/passwd Is there a way to run a command instead? Like... http://server.com/..%01/..%01/..%01//ls ..... and get an output? EDIT: To be clear here, I've found the vuln in our company's server. I'm looking to raise the risk level (or bonus points for me) by proving that it may give an attacker complete access to the system

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  • Why doesn't "cd" work in a bash shell script?

    - by askgelal
    I'm trying to write a small script to change the current directory to my project directory: #!/bin/bash cd /home/askgelal/projects/java I saved this file as proj, changed the chmod, copied it to /usr/bin. When I call it by: proj, it does nothing. What am I doing wrong?

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  • Is it possible to change iframe src using javascript exists in page inside that iframe?

    - by Amr ElGarhy
    I want to change the iframe source when something change in this iframe content, the iframe is in a different domian than the parent page. is this can be done or not? I just need to add a hash to this iframe src, so that i can access this hash value from the parent page and do some stuff based on this value. What i did: In the iframe page i wrote: window.location.hash = "close_child"; and in the parent page i wrote: if (document.getElementById("MyIFrameId").src.indexOf("#close_child") > 0) { but i always find that the src is empty

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  • I want the actual file name that is returned by a PHP script

    - by Aymon Fournier
    I am writing a python script that downloads a file given by a URL. Unfortuneatly the URL is in the form of a PHP script i.e. www.website.com/generatefilename.php?file=5233 If you visit the link in a browser, you are prompted to download the actual file and extension. I need to send this link to the downloader, but I can't send the downloader the PHP link. How would I get the full file name in a usable variable?

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  • Chrome / Firefox - positioning slightly off

    - by user352241
    Firefox and Chrome are positioning elements slightly off from each other - like a few pixels. Below are screen shots so you can see what I'm talking about. Can't figure out a fix. Notice the word 'giants' is positioned way higher on the firefox browser. Firefox: http://lh6.ggpht.com/_g1qpMbjSY1o/S_61DmN5BoI/AAAAAAAAAS0/3K5iCIxMYxk/s800/Firefox.jpg Chrome: lh4.ggpht.com/_g1qpMbjSY1o/S_61DQykEzI/AAAAAAAAASw/GDVEGdmISRg/s800/Chrome.jpg

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  • Passing partial arguments in tcshell

    - by R S
    Hey, I'm writing a shell script (tcsh) that is supposed to received 3 parameters or more. The first 3 are to be passed to a program, and the rest are supposed to be passed to another program. All in all the script should look something like: ./first_program $1 $2 $3 ./second program [fourth or more] The problem is that I don't know how to do the latter - pass all parameters that are after the third.

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  • How to determine if a C++ usertype has been registered with tolua

    - by czuger
    We use tolua++ to generate Lua bindings for C++ classes. Assume I have a C++ class: class Foo { //Some methods in Foo, irrelevant to question. }; and a tolua .pkg file with the following contents class Foo { }; Consider the following function: void call_some_lua_function(lua_State* luaState) { Foo* myFoo = new Foo(); tolua_pushusertype(luaState, (void*)myFoo, "Foo"); //More code to actually call Lua, irrelevant to question. } Now, the actual question: tolua_pushusertype causes a segfault in Lua if the 3rd parameter does not correspond to a valid fully qualified string of a C++ class that was registered with a call to tolua_cclass. So, if parameter 3 where "Bar", we get a segfault. What I would like to do is the following: void call_some_lua_function(lua_State* luaState) { //determine if tolua is aware of my type, how to do this? //Something like: //if(!tolua_iscpptype_registered("Foo")) //{ // abort gracefully //} Foo* myFoo = new Foo(); tolua_pushusertype(luaState, (void*)myFoo, "Foo"); //More code to actually call Lua, irrelevant to question. } Is there a way to do this using tolua?

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  • Elegant way to search for UTF-8 files with BOM?

    - by vog
    For debugging purposes, I need to recursively search a directory for all files which start with a UTF-8 byte order mark (BOM). My current solution is a simple shell script: find -type f | while read file do if [ "`head -c 3 -- "$file"`" == $'\xef\xbb\xbf' ] then echo "found BOM in: $file" fi done Or, if you prefer short, unreadable one-liners: find -type f|while read file;do [ "`head -c3 -- "$file"`" == $'\xef\xbb\xbf' ] && echo "found BOM in: $file";done It doesn't work with filenames that contain a line break, but such files are not to be expected anyway. Is there any shorter or more elegant solution? Are there any interesting text editors or macros for text editors?

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  • How to get line count from variable (from MYSQL query)?

    - by Mint
    My problematic code: testMYSQL=`mysql -u $mysqlUser -p$mysqlPass -h $mysqlHost --skip-column-names --batch -D $mysqlDB -e "SELECT $select FROM $mysqlTable WHERE nameTXT='test';"` $testMYSQL now contains: test test test Then I do: TEST=$(echo $testMYSQL | wc -l) echo "$TEST" I would of thought that would work, but it doesn't, it returns 1 But if I put this into $testMYSQL: "test\ntest\ntest" it will say 3… Whats going on here? does MYSQL not use new lines? PS, I know I can use a for loop to loop though the lines then count up the lines that way, but I was hoping for a simpler solution like wc

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  • A more flexible and agile compiled language - possible?

    - by sdudo
    I have a short question that I have been thinking about for some time now so why shouldn't I ask it here on SO: Is it theoretically possible to create a compiled, yet more agile, flexible and rapid-development-friendly language? If so: Where would be the pros and cons? Why isn't there one yet?

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