I am trying to create a script that reads a list of url's from a text file and then executes the same script for each line. This is what I am looking for:
elinks -dump $(url's in file, one by one) | grep "reply" > jobs.txt
I am trying to read certain lines within a file and give the output of the certain lines that dont equal my value, I think showing you would be easier. There is multiples of these inside one file...
Code:
LV Name /dev/vg00/lvol1
LV Status available/syncd
LV Size (Mbytes) 300lable/syncd
[code]....
I want to read everything in the file, if the status is not available then it should display the name (directly above status). If they are all availbale then do nothing. I think I know how to do it which includes putting the info in string form and placing in hash but it is proving to be out of my skill range.
To save on the writing of WAY to many files with very little in them, I want to put it all in one file and read a specific few lines. There will be six variables to be read at a time. Format is as such:
//Set 1
string name
5
12
[code]....
From name to 5th number is a set. The name will be of different lengths for each set. This will be a big file of probably 40+ sets. My problem lies in reading one and only one set be it set 5 or set 34. It needs to be done in C++.
I don't understand the results of a simple performance test I ran using two basic scripts (running on a high end server):
perfVar.zsh :
#!/bin/zsh -f
MYVAR=`cat $1`
for i in {1..10}
[code]...
Performance test result:
> time ./perfVar.zsh BigTextFile > /dev/null
./perfVar.zsh FE > /dev/null 6.86s user 0.32s system 100% cpu 7.177 total
> time ./perfCat.zsh BigTextFile > /dev/null
./perfCat.zsh FE > /dev/null 0.01s user 0.10s system 91% cpu 0.118 total
I would have thought that accessing a VARIABLE was way faster than reading a FILE on the file system... Why this result ?Is there a way to optimize the perfCat.zsh script by reducing the number of accesses to the file system ?
explanation what I want to do exactly:I have a textfile which looks for instance like this:
file.txt:
...
something=else to do
[code]....
I have this massive table file with some data in it and I want to replace some lines that are wrong with the correct ones that are in another table file of the same format. The wrong lines are not all together in a block but randomly distributed so I need to make a loop checking if the line is in the other file and if it is, replace it. I want to try and do it with sed or awk but I don't really know how to....
View 12 Replies View RelatedI have a 7.2 GB file (VMWare virtual machine file) that I am trying to copy from its original location to the another folder OR to external hard drive...each time I try to do this, I always get the following error after the copying process reach 'exactly' 1.4 GB
Error reading from file input/output error
And I have to either Cancel or Skip
I've tried to split the files to smaller pieces but the idea didn't work as I still get the same error whenever I try to compress/ split or do any operation with this file. how I can copy this file?
On the `Install Properties` Menu , I am not allowed to check the: Allow executing file as program...
View 2 Replies View RelatedI installed wine in the new Ubuntu 11, but when i right click and go open with wine it says that its not marked as executable! then i went right click and properties and under the permissions i clicked "Allow executing file" but it keeps unchecking!
View 9 Replies View Relatedwhen I try executing a file in WINE that was a C++ and was compiled into a .exe I get:
Code:
fixme:actctx:parse_depend_manifests Could not find dependent assembly L"Microsoft.VC90.CRT" (9.0.21022.8)
err:module:import_dll Library MSVCP90.dll (which is needed by L"Z:\home\server\ms\MCServer.exe") not found
[code]...
A bunch of my .rtf files suddenly (within the last few days, not sure when) have the "Allow Executing File as Program" box checked under their file Permissions. So whenever I try to open an rtf document, it asks if I want to run it. What's up with that?
View 3 Replies View RelatedYesterday,I upgraded to ubuntu 10.10
then when i try to mark allow executing file as program it unmarks itself although i used it on ubuntu 10.4
I have a php file that I need to execute via a cronjob. This file should be run by the www-data user as its a file in my /var/www/project folder. When I run this file under root (php -f cron.php) everything works perfectly, but I want it to run under the www-data to be safe. Before I run it vai crontab I tried it via command line as the www-data user and I receive errors:
Fatal Error: Allowed memory size of 8388608 bytes expired (tried to allocate 232 bytes).
But when I run it as the root user I get no errors and everything works correctly. The file cron.php is used to process automated tasks in my CRM. So I don't really want to have the root user running a crontab every few minutes for this.
Must the www-data user be given more permissions? I am using Ubuntu 6.06LTS
PHP - 5.1.2
Apache - 2.0.55
MySQL - 5.0.22
i have many text files in my directory and when i click on them to open them os treat it as a runnable file any says display or run or run in terminal ... i want to pick up recursively the tick of "Allow executing file as program" for all files.
View 2 Replies View RelatedMy present working is
Code:
linux:/home/anisha/downloads/mapnik-0.6.1/demo/c++ #
Now I want to run "python scons/scons.py" located in
Code:
linux:/home/anisha/downloads/mapnik-0.6.1/ #
I tried
Code:
../../python scons/scons.py
From the above stated PWD but it resulted in the following:
Code:
bash: ../../python: No such file or directory
What is the way to execute a file of some other directory from the PWD!
Code:
#!/usr/bin/awk -f
BEGIN{ FS=":"}
{
"groups "$1 | getline grps
[code]....
HI am facing the strange issue in netbeans on ubuntu 9.04. whenever the file contains more than 3000 lines the characters overlap on each other and the file is not readable, where as if the file is less than 3000 lines it works fine. what may be the reason ?
View 2 Replies View RelatedIm trying to run a program but my system won't let me.i used to be able to run executable files without a problem but i can't anymore when i double click the file i get "there is no application installed for executable files" i am unable to check "allow executing file as program" in file properties there is a script file which runs the program but all i get from the terminal is "permission denied"
View 14 Replies View Relatedi have recently started a bit of sh coding. i was trying out sm commands from an sh file.
#!/bin/bash
txt1="top > temp.txt"
eval $txt1
[code]....
I need a way to read and delete text found before a unique string, then delete the string. I would like to have the text stored in a variable--or better yet--executed it as a shell script directly.I intend to execute the stored text in bash. It does not matter much what language the program is it, however efficiency is desirable. This script is not going to be used on large files, but it may be executed many times sequentially so the faster the script works the better. Here is an example:
exclamation-"It worked!"
echo $exclamation
cd
[code]....
what i did is created a file called pro3types but the script starts & by pass the file. i added +x to file ran the process but still no luck. i was wondering what else i should change to get the menu to the sub-categories of product3 after users selecting it. all I need to get the pro3types runs after users selecting product3 from the previous menu. need more info please see the thread: "Adding New Selections to the existing Script"
[URL]
but here is code:
Code:
#!/bin/sh
echo SELECTTYPE
export -n selecttypechoice
[code]....
I installed Ubuntu 10.10 beta yesterday and most of it is working very well. However, I ran into a problem with permissions today.I have a HDD containing my home folder and a HDD containing my data folder. The HDD with the data folder is mounted on /media/data/data_1.
Code:
jensen@jensen-desktop:~$ ll /media/data/ | grep data_1
drwxrwxrwx 8 jensen jensen 4.0K 2010-09-07 23:10 data_1/[code]....
I made sure I had set a+x rights on the file, tried executing it as root but the permission error stayed.When I copy that same file to my Desktop folder I can perfectly execute it.When it's located on the other hard drive I can't. I tried several command line scripts and they all work when I execute them from my OS hard drive,but not from another hard drive.
I'm looking for a way to insert the number of lines in a file to the start of the aformentioned file. This should be simple but as I am not used to scripts in Linux, I am finding it tough going. I can find the number of lines in a file easily enough via
filesize=$(awk 'END {print NR}' $1)
but as for inserting this into the first line, i'm failing to do so. I've tried some of the other approaches on these forums but none so far have been able to do so.
I've tried:
sed '1i$filesize' $1
but sed i requires a string, not a variable so no go I've also tried:
mv "$1" "${1}.bak" 2>/dev/null || touch "${1}.bak"
cat $filesize "${1}.bak" >"$1"
but again with no luck as cat seems to need an input stream Just to recap, i want to insert a line at the start of a given file that holds the number of lines the original file has.
ie the file:
a
b
c
d
e
should become:
5
a
b
c
[code].....
I'm using Ubuntu and I'm programing with eclipse CDT. My goal is to execute a php file and read the output to my c++ program. To do so I thought I should use fork(), dup2() and execl. When in shell, the call "php myscript.php" worked just fine, but when in c++ I tried:
execl("usr/bin/php", "php", "home/geiger/workspace/SemiServer/server_content/myscript.php", NULL);
And it didn't work (the process wasn't terminated and I got no output). I tried different version of this call, like losing the "php" string and/or drop "home/geiger" from the path string, to no better result.
Binary files need only execute permission to execute. No read permission is required. But all executable files must be read by the kernel into main memory before executing. Also script files need both read and execute permissions for executing the file.
View 5 Replies View RelatedI am using squid 2.6 on my cent os 5 .I want to shutdown the system at 7:00 pm for that purpose I write in# crontab -e 0 19 * * * /sbin/shutdown -h nowThe thing which I want to clear that when the system will going to turn off it will also stop squid service? If not then how can I automatically stop squid service and then crontab file execute
View 6 Replies View RelatedIs installing "php5-suhosin" from yast and restarting apache enough to make suhosin work out of the box? Or do I need to add few lines to php.ini file and modify suhosin file?
View 3 Replies View RelatedI am using RHEL 5.I have a very large test file which cannot be opened in vi.The content of the file has some 8000 lines.I need to view ten lines between 5680 to 5690.How can i view these particular lines in a large file.what is command and option i need to use.
View 1 Replies View RelatedI am trying to delete lines of a file if they contain text that is present on another file. For example
> cat one.txt:
a
b
c
d
[code]....
I get the following output:
> ./test.sh one.txt two.txt
a
b
d
e
[code]....
I recently set up a server in my house using Apache 2 running off Ubuntu 10.10 Netbook edition (no, the computer is a desktop). I tried running the website on a few computers in house and all the images and scripts seem to load fine but it is unable to read from the data.xml file through javascript. This leaves all of the web pages empty because all of the content is parsed from the xml file through javascript. I tried debugging with google chrome and after running this code to load the xml file:
if (window.XMLHttpRequest) {
// For IE7+, Firefox, Chrome, Opera, Safari
xmlhttp = new XMLHttpRequest();
}
[Code].....
the xmlhttp.responseXML is null and the script crashes. Could this be a permission issue? I tried setting the data.xml file to read-write permission for any user but that didn't work.