I need to write a script (possibly awk) that is able to process 2 files, but I am very new to awk and I have problems in how to process 2 files at the same time.The first input file is samples.txtthe formattime_instant measure
Code:
903.0 -
906.43 18.4
[code]....
I am doing a program that reads data from a gps and some other devices and writes some files with all the information. When I run it normally it works fine, but if I run the program in the background (with the ampersand) files are not created until I bring it to foreground or close it. I am confused, the program should run the same way with and without the ampersand. (Could it be that the main process that creates all the threads does not create them when it is executed in background? It seems like if the program is stopped until I take it to the foreground).
View 4 Replies View RelatedI want to know how to write a script that would use the standard Linux FTP command to download all the mp3 files from a FTP server cause GET *.mp3 doesn't work. Also how would I write the same script but as a batch file to be run in windows cmd through the windows native FTP command?
View 4 Replies View RelatedI'm completely new to scripting and I'm trying to figure out how to write a script that will get a list of all the files in a directorywn through any subdirectories.When I have the list I want to o each file in VI and change the fileformat. So far all I have been able to figure out is that VI can do the batch processing and that "ls -R" gets me the recursive file list. I'm still pretty clueless on how to do the batch process with the VI editor. I think I'm supposed to use the Ex mode but I don't know how to get the list of arguments from the filelist into the editor so they can be processed. If it matters the files were all written in a Windows editor and have gotten the MS carriage returns so I want to do a :set ff=unix command on all the files without having to go into each file manually, there are over 300 files that need updated.
View 3 Replies View RelatedHow can I write a script that will go through the files in a directory and print on the screen the name of the files stating if it is a file or directory. The directory is already provided by the user.
View 12 Replies View RelatedI've been using Linux for a few years and have managed to find what I need searching (including this great site) until now. I have managed to mess up a substantial partition and don't want to possibly make a bad situation worse by bungling around an area I know next to nothing about. I'll try to explain it fully.I finally built a new PC (750GB internal HDD, 4GB RAM). I'm used to Kubuntu so I installed that (10.04 x86_64bit); partitioned sda1 1GB swap / sda2 OS 20GB ext4 / balance sda3 home ext4 for time being. Everything runs sweet. My old PC (very, PIII, but more recent 500GB internal HDD) partitioned sda1 486.31MB swap / sda2 OS 22.82GB ext4 / balance (442.46GB) sda3 home ext3 (ext3 because /home was inherited from an earlier install prior to Kubuntu going ext4). Old PC was having PSU prob. I don't have an external HDD or any other large HDD and not enough DVDRs for 280GB or so of data current in /home. So I backed up what I could risking the old PC working long enough. Got the critical stuff, business etc. There remained some 150GB or so, years of pictures, videos, info on car repairs etc (some but by no means all on semi annual DVDR backups). Free space current in new PC's /home partition ~500GB. So I took out the HDD from the old PC and put it in the new in order to copy the remainder then use it in the new PC; made sure BIOS of new PC indicated this 2nd drive did not have boot priority. The correct install booted.
To my surprise (maybe not yours?) during boot with zero indication, Kubuntu decided to use the 2nd HDD's /home partition for its new 442.46GB swap partition instead! I was horrified. I unmounted it immediately but... according to GParted the partition with all those files to copy is now:/dev/sbd3 File System: unknown 442.46GB Used: --- Unused: --- no flags
I was surprised by kubuntu changing its partitions without input and assuming a ext3 file system on a secondary HD for a 442.46GB swap partition. But, mistake's on me. Call it a lesson. Now I need to know more but don't want to experiment unduly on this drive and possibly make things worse: What should I do next?
Are there any solutions by which linux-based web server frameworks (like zend or any other) can process data inside microsoft excel spreadsheets (*.xls)?
View 1 Replies View Relatedwrite shell script for copy files to usbdąsk that cosist of very long argument like "2009025_efkl".
View 1 Replies View RelatedI have a bunch of files that contain a date, then data. When I use join, I get exactly the output I need. But manually joining the first with the second, then that output with the third and so on would take days. I have thousands of files. Can any of you folks help me write a script that would do this?To put it another way, for clarity's sake, here is what I am currently doing
If I were to repeat that 3000 times the final output would be what I need. I know a simple script would do this for me, but I can't figure out how to write it.
I want to write a script that will detect all the unwanted files in a particular directory and delete them in one fly..
View 11 Replies View RelatedI have a folder of 2 many files that the old ls just hangs.
I am trying to write some log files such as;
I don't mind doing one at a time, but I am just playing and even getting the listing I am not getting the date stamp, I have the following;
That does create the file, but all the files look like this;
So basically it's just sticking that ls inside the log file and not actually running the ls, so how can I use the above type to get files just created per year?
I am trying to write a script to edit text files formatted like this:
Code:
(MCAL@Contig766:0.30207,CGIG@CVIR_Contig1014:0.13977,(HASI@HDIS_Contig573:0.16828,(CAPI@LCIN_5594371:0.36581,CFOR@FQH745302RIQ7Y:1.91244)0.160:0.00019)0.939:0.15648);
There are never line breaks or spaces in the actual files.
I want to delete all instances of the character "@" and everything between it and the next "," (including that comma) or the next ")" (including that close parentheses) whichever comes first. My desired output file would be like this:
Code:
(MCAL,CGIG,(HASI,(CAPI,CFOR)0.160:0.00019)0.939:0.15648);
I figured out how to do this using sed for either "," or ")" but both looking for whichever comes first.
I am going through a multi-step process to produce output files, which involves 25,000 greps at one stage. While I do achieve the desired result I am wondering whether the process could be improved (sped up and/or decluttered).input 1set of dated files called ids<yyyy><mm> containing numeric id's, one per line, 280,000 lines in total:
Code:
123456
999996
[code]....
I want to write a shell script which will simultaneously collect OS user information and write in an individual text files.Can anyone tell me the syntax of the script.N.B. The user name will be mentioned in an array within the shell script.
View 8 Replies View RelatedHow to Write a small shell script that adds an extension ".new" to all the files in a directory.
View 2 Replies View RelatedI have a shell script to identify whether the process is running or not. If the process is not running, then I execute another script file to run my application. Below is my script and saved this script as monitorprocess.sh Code: #!/bin/bash
result=$(ps -ef | grep -v grep | grep "applicationname.sh" | awk '{print $2}')
echo $result
if [ "$result" == "" ];
[code]...
Is there any difference in cpu usage for process in init.rc(runs automatic when boot is happened) and manually running process. Will these both have same priority by default...?
View 1 Replies View RelatedI tried googling but didn't get any answer for this.I have a process called "abc" and it is running with PID "123".I have a putty session opened with PID "999".I am giving kill -TERM 123 from putty session.My process "abc" before dying it should catch the PID of the terminal which provided TERM signal to it.Is there any way to find this out
View 2 Replies View RelatedI want to write the sequence of operation of a user interactive process (Question asked by the process and answers user entered) in to a log file.
I used tee command, Precess1 | tee -a FileName
This write only the Question asked by the process. Does anybody know how to write the user inputs also to the same file, synchronized?
I have a shell script to identify whether the process is running or not. If the process is not running, then I execute another script file to run my application. Below is my script and saved this script as monitorprocess.sh
Code:
#!/bin/bash
result=$(ps -ef | grep -v grep | grep "applicationname.sh" | awk '{print $2}')
[code]...
I am looking for info about how works automount process, and i didn't find info about the tollowing ...
I wonder ... how can i do to "config" automount process to put all my usb devices in write-back mode as default ... for example ... what file can i change? ... how to do it ?
And another one ... um... how to say to "automount process" ... to put my usb devices into a "deadline" io scheduler .. for example ... how to set io-scheduler for an automount device ?
I am trying to write a shell script in order to automate the process of uploading a file onto an FTP server using the built in FTP commands in ubuntu server (lucid). In order to connect I can use the following:
Code:
ftp wsbeorchids.org.uk
Name (wsbeorchids.org.uk:danielgroves): USERNAME
Password: PASSWORD
In need to pass my username and password in when prompted the prompts. How should I go about doing this? I have tried echoing the values without success. Please not that I am something of an amateur with scripting.
I want to kill parent process after "fork()" method. but if I kill parent process with "exit(0)" method, main() thread is terminated as well so child prosess doesn't work anymore. Is there any way to kill only parent process without affecting to child process?
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
[code]....
Consider the following code:
Code:
int main()
{
int i=0;
pid_t pid;
for(i=0;i<2;i++)
[code]....
I get the following output:
Parent: chid_pid=4356 i=0 parent's pid=4355
This is child 4356 i=0
This is child 4357 i=1
[code]....
I can observe instead of two children(as I expect) processes there are three. This is because child process 4356 creates its own child. Why all the messages of the type "This is child X i=Y" are concentrated one under another? How exactly fork works? Is affected by the fact that I have a dual-core processor?
i want a process that can operate as both a TCP echo server and a UDP echo server. The process can provide service to many clients at the same time, but involves a single process that does not start up any other threads.
View 3 Replies View RelatedI just started messing around in Linux programming, and I wanted to create a simple test program to open a file, read to it, and write to it. I can open and read it, but write always gives errno = EBADF. I've messed with file creation permissions and I can figure out why write() thinks it's a bad file descriptor but not read().Here is my code:
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
[code].....
I need to write a GUI for the web to gather the following info:
Username
Password
SomePlainText
Path1
PathN
Of course, I then need an 'submit' button. I then want to have the user upload all paths supplied from their machine to my server. I hope to work with this data as arguments for a bash script. Also, I need to work with all possible client OSes consistently. What language should be used?
Can you offer me the code about fmod() in C. I want to know how this function work, i am very interested in it because i have no idea to implement it, i want to know... how to write the function... not 'how to use the function' can anyone post the source codes of this function here?
View 6 Replies View RelatedI've been working at learning how to write makefiles and I'm a bit stuck.
I've got a fairly simple project that will eventually be a framework for TCP/IP Communications in evolutionary algorithms that I've been using Eclipse to develop.
For personal development I want to learn how to write makefiles by hand but have gotten kind of stuck
Here is the makefile as it stands now:
Code:
Port and Mailbox are a virtual class and a template class respectively.
I get these errors when I run make:
Code:
So for some reason every single function in the Connection class has been defined multiple times. I assume because it's included as a dependency for multiple targets, but I've seen this in numerous examples that apparently work.
Everything in libpthread is undefined because I'm not linking in the library. I've tried adding the library options to the LDFLAGS variable but that doesn't seem to work either.
I want to learn to write an USB driver on linux 2.6.x I tried to find some documents but i could not find documents for it . Most of it gave direct driver code as reference.
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