With the command "tail -300 /var/log/apache2/access.log | less" i can look in the log for the 300 latest visitors from my logfile. and i wanted to ask if it's possiblle to get that command to run from a php file and if yes how ?? how i run system commands in php? i use debian if it matters.
View 1 RepliesI was zsync-ing the latest Ubuntu 11.10 Alpha and thought I'd make a little GUI for it as a small project. The gui is set up, I just need to figure out how to run zsync with content from to variables, cto and cfrom. I tried the following code:
[Code]....
I'm trying to write a python script that will use the current user's name when interacting. Ex: when started, it should say "hello daweefolk" when I am logged in.
I've tried
Code:
username=os.system("echo $USER")
but the variable remains empty.
What is the correct code?
How can i get full command as and when a partially finish typing in Linux Command prompt. or is there a way i can get the command from history of commands executed automatically when i type instead of opening history and looking for the command?
View 7 Replies View RelatedI've tried instralling the c and c++ compilers on my fedora 13 machine and none of them seem to work. For example. i have this extremely simple c program that i try to compile and nothing works.
Code:
#include "stdio.h"
printf("Hello World");
[Code]....
I've written a for loop with a counter i and I want to use the value of i within sed to edit certain lines of text within a fortran file.I want the the x=10 will be replaced by x =1(counter from the loop).. and so on.But from the following code my x = 10 is replacing by x = i.So
I am getting error.
When I was on Ubuntu/Debian based Linux Distros, I would open up the terminal and type sudo apt-get autoremove && sudo apt-get clean && sudo apt-get autoclean to clean up my system and I would also use Ubuntu Tweak to clean up as well, what commands do I use with Fedora 14 KDE to clean up my system?
View 2 Replies View RelatedI'm trying to follow a few commands that have been recommended to to get my system to boot again .
The following are the commands:
Code:
Then modify the first command I gave you to read:
Code:
All other commands should work:
Code:
At the end, you should also run the following commands:
Code:
And here is the terminal readout from the first few commands:
Code:
Am I right that at this point I should issue the " -f " command or should I issue the -f at the end of the last command?
What is the similarity between linux commands and dos commands?
View 6 Replies View Relatedwhich filesystem usually contains system commands and utilities?
View 4 Replies View RelatedI want to learn Linux commands and want to do a certification.
PLEASE HELP with the key points and if you have anything important about it.
I'm learning GTK , and would like to use Codeblocks, and/or KDEvelop, and compile my c files using that, but always get an error about gtk/gtk.h not found, but can't figure out how to add the commands... I normally type gcc -o Program1 main.c `pkg-config --libs --cflags gtk+-2.0` That's a lot to type every time to compile.. Isn't there an easier way, in KDevelop, Monodevelop, and/or Codeblocks to make this step quicker, by adding some sort of I-/usr/include commands, or something?? thanks in advance, =). I looked online for some results, but didn't come across anything handy..
View 1 Replies View Relatedwant to set more text files. They have "tab" differently (3, 4, 6 or 5 characters space).I have to use "sed" or "awk" sette them in the same tab (for example five space haracters).
View 14 Replies View RelatedI am executing a run command in a script after that i need to copy files into a directory which are the inputs for the run,on run a new shell is created and the remaining commands in the script does not execute,wot should i do to execute the remaining commands in the script??
View 2 Replies View RelatedI am trying to administer a small group of ubuntu desktops in my classroom. I can use ssh to perform administrative tasks one at a time on each machine, but I want to automate these tasks through a small number of scripts. I am having trouble with running root commands through a script.
On other distros, I think I would simply ssh into the root account, and run the script. But as an ubuntu user, I have only ever used sudo, and folks at ubuntuforums are understandably hesitant to recommend logging in as root. Instead I am seeing suggestions to disable the password requirement for each specific command I want to run, which does not seem like best practice.
Should I enable the root account, give it a password, and ssh to the root account to run the scripts? To be specific, the scripts will do things like install updates, install programs, add or delete users, configure the desktop, etc.
Anyone know how to execute SQLite db commands from C++?
View 1 Replies View RelatedFor example, in GDB we talk about breakpoints, watchpoints and core dumps etc. Similarly what are the 'must knows' in Valgrind?
P.S. I don't need any links to Valgrind manuals, I already have them.
Code:
find . -name *.txt
Code:
find . -name *.txt
Where are the other BASH commands/exe stored? If the commands are part of the exe of BASH than ls would not be in a path, correct?
View 11 Replies View RelatedWhich is faster:
fread(&buf, 1, 1024, fp);
or
fread(&buf, 1024, 1, fp);
[code]...
I've recently lost my window options, had to somehow manipulate my way to Xchat and ask some people how do I get it back (it was metacity --replace, and after I decided to stop the command and run it in background the X was completely useless so I had to do killall -u user). And that was after the internet connection stopped working for some reason (might've been the ISP).
The thing is, after using linux a long time, I still get the feeling that on dire situations, I don't know the good tricks (stuff like metacity --replace). I feel like a really need like a "rescue" cheatsheet for things like: how to save the X no matter what without pressing reset how to reset the system to "normal state" how to connect to the internet through the command line how to monitor what the X is doing (using ubuntu linux 10.04 btw)
I want to copy a file (home/remote_computer_user/Desktop/test1.txt) from my remote office computer (a permanent URL + open port) to my home computer (home/home_computer_user/Downloads/).
How can I do this with shell commands in Linux?
My current thoughts:
ssh <user>@<computer1address> -p <port> - gives me a shell on the remote computer
(I think I should use scp, but I dont how exactly how in my case)
What are the exact commands I should use?
I have linux based photo editing software that I want to install so that it can be accessed through the Applications menu. Which system folder do I install it in? Or what terminal commands do I use to install so it is part of the system?
View 5 Replies View RelatedWhere can I finds Terminal commands for Ubuntu? Such as checking what cpu , load , system...etc
View 9 Replies View Relatedi need to run a command from a shell script that requires me to answer "Yes" to 2 questions that the command asks before it kicks off. how do i do this? i thought it was something like this.. from inside the parent script:
sh test.sh << "EOF
Yes
Yes
[code]...
im pretty sure this is a remedial task for many of you but im having an issue with arrays from a shell script being accessed in an awk command. im pretty good with shell scripting but i am embarrassingly unfamiliar with awk. so here's the meat of the script...
Code:
I am trying to take an input file of ip addresses and corresponding netmasks and put it into a format to be loaded onto a juniper switch. the result should look something like this.. x.x.x.x/netmask using the cidr notation. no matter what subnet is provided though, /32 always gets appended to the end of the ip even when it should be /16, /24, etc... also, the cisco part works fine so that doesnt need any attention.
how to run a linux commands in shell programming using control structures.
View 1 Replies View RelatedIn below program I want to add (as part of the valid_cmds string) the pwd (print working directory), lo (logout), and cd (change directory) commands. However when I add those into original program ;
char *valid_cmds = " ls ps df pwd lo cd";
they are not working I have the cout message huh?
Original source code is below code...
I am working on the shell using c language. I just would like to ask when I run some command in the backgrounds, how can I allow interleave out? I want to the output like this:
shell> command1
shell> command2 &
shell> command3
[code]...
I ran a perl script in background with nohup and disown to make sure my script runs even after the parent process is terminated.
Method 1: nohup
> nohup perl run.pl &
[1] 2080
Method 2: disown
> perl run.pl &
[2] 2448
> disown
In either method, the script process doesn't seem to connect to init process, when I checked using pstree command. I thought, the disown or nohup command detaches the process from its parent and attaches it to grand grand parent init process. And it disables SIGHUP signal to my script process. But the pstree command didn't show me what I expected. It still shows my script process attached to my current terminal process. I just don't understand the concept behind these two commands (nohup and disown). Is there any way, I can see the list of processes that are run by nohup or disown command?