Im having problems with this little thing in a C example Im doing. I want to show in the shell like this example:
Name Birthday
Tomas 13
Adrian 24
Nate 15
Im trying to use the printf function but the names doesnt have the same lenght. So I cant do it like this:
printf("Name Bithday
");
printf("%s %d
");
how do I achieve the result but here is the story. I have a script which prompts for the IP Address and read that value and validate if reachable. If not then it should keep on prompting until the IP is reachable. I tried using until loop as well as while loop but dang..Here are the codes
#!/bin/bash
IP_Feed () {
echo -n "Give me IP : "
[code]....
I have 100 sets of EPS files. Each set contains 3 files. I was wondering if it possible to arrange each set in such a way that 3 EPS files will be on one page?
I know how to write a bash script with "for" or "do" loop. how to arrange the EPS files, which are produced by gnuplot.
when i add a harddisk to the lenny installation, i cant reboot sucessfully.The disks are all sata, mounted as JBDO, no raid what so ever.They can be used in windows xp x64 (they are ntfs formated)HW setup:
a8n-sli delux
amdx64 cpu
2 gb ram
[code]...
consider these lines of code and their outputs:
[CODE]
int C = 0;
fprintf(stdout, "
(C, ++C) Bef = %d, Aft = %d
", C, ++C);
fprintf(stdout, "(C++, C) Bef = %d, Aft = %d
", C++, C);
[Code].....
The only one that looks right to me is the second one. I get similar results using both gcc and g++.
I am trying to create a shell script similar to ls, but which only lists directories. I have the first half working (no argument version), but trying to make it accept an argument, I am failing. My logic is sound I think, but I'm missing something on the syntax.
Code:
if [ $# -eq 0 ] ; then
d=`pwd`
for i in * ; do
if test -d $d/$i ; then
echo "$i:"
code....
i have a loop which produces new value everytime it runs. i want to store the results in an array. how can i do dat??
loop is like:
a=0
declare v
while ((....))
do
v[$a]="$r"
let a=a+1
done
while doing this it is not treating v as array but as variable and it is overriding the value and old value is lost..i am using bash shell version 3.00.15
I have this multiline variable code...
View 5 Replies View RelatedI have a socket library that I tinker with from time to time. Lately, I decided to expand it to support IPv6.
One of the issues I am having is sending data, using sendto(). When the server receives data from a client, using recvfrom(), it does not retain the sockaddr_in information, but instead provides the callee the IPv6 address and port number from where the data originated. See here:
Code:
int
UDPSocket::recv(char* buffer, size_t bufferLen, std::string& sourceAddr, unsigned short& sourcePort)
{
sockaddr_in sin;
socklen_t sinLen = sizeof(sin);
[Code]....
I've a web page where I can search information in my database.Sometimes results of search operation are more of fifty.How can I split results in different web page as it happens for example in any search engine or operation
View 7 Replies View RelatedIs there some type of functional way to read things in the Python shell interpreter similar to less or more in the bash (and other) command line shells?
Example:
Code:
>>> import subprocess
>>> help(subprocess)
...
[pages of stuff to read]
...
I'm hoping so as I hate scrolling and love how less works with simple keystrokes for page-up/page-down/searching etc.
I have a simple class that encrypts strings. It seemed to be working fine until I tried to compare the decrypted values to the original. below is the output of the php code. It appears to be decrypted but the length is incorrect.
String Before Encryption: a text string
String Length Before Encryption: 13
String After Encryption: rew2iSYotruIpmJ3llos3A==
[code]...
I'll post the entire code here, and then specifically highlight what is just failing in a fashion I'm apparently incapable of fixing a few hours later:
Code:
#!/usr/bin/expect
# The script should be called with a file in the directory called sshServerList
# That file has the following format:
# Line # | Contents of line
[code]....
I've had all kinds of different results and problems, but I've never been able to successfully log into multiple servers, though the first server in the list most times works okay (though might not on this iteration). I'm a bit hack and slash and I would be very greatful not only for a solution, but any tips on how I should have done this and places where I could clean up my code.
How do I find for example the 4th to the 9th result in a particular SELECT query?
View 6 Replies View RelatedI'm sure this has been covered somewhere before, but I couldn't find anything and so figured I would post here. I have been using Linux OSes for the past couple of years and also using GCC/G++ for application development. However, I have almost always been on x86 systems and never gained much experience using the wide range of optimization options available.
My question is, if I do not specify the -march=PROCTYPE option, will GCC still be able to detect the current architecture and build the code accordingly? I primarily ask this because I am working with an x86_64 system, and specifying -march=x86_64 in my makefiles generates errors about it being an unknown processor type, even though the CPU and OS are X86_64. I know this sounds like a newbie question, but it's just ground I've never had to cover before until now.
trying to see IF i dont get the right results repeat the command until it will or quit after 3 tries....
expect -exact "->"
send -- "test_read_register 0,0x37
"
if {! [regexp {Address 0x00000000} do send -- "test_read_register 0,0x37
[code]....
It should read
Read: Address 0x00000037, Data: 0x0000000b
but sometimes it comes out to this
Read: Address 0x00000000, Data: 0x00000000
therefore ill have to run the command again IF I Dont get the right results...
I am having trouble with encryption/ decryption program. The program goes out and finds the file I want it to, encrypts it into a continuing series of a single repeated negative number, then generally decrypts(or should i say re-encrypts)it into a widely repeated character, different but same results every time.
[Code]....
I ran the command:
Code:
ls -ltr | head -n40
I'd like to delete all the files listed...
I am querying a single string column in a table. The string values have spaces in them. I want to loop over each value in bash. I set IFS to split lists on newlines instead of spaces. When I try this, it is splitting the list of results on the actual character 'n', not the newline ''.
DATA=`mysql -u root -ppassword --silent 'SELECT name FROM table_a;'`
IFS=$'
'
for i in $DATA; do
echo "item = $i"
[Code]....
I used wait4 to time a child process. but the results differ each other dramatically. why?my core source code lists as below.to the point: in linux 2.6 kernel, how to time a process with a high precision. and, only its user-time rather than the elapsed time???
static struct rusage ruse;
static pid_t u_pid;
int main(int argc, char *argv[])
{
int i;
code....
I am trying to store the results of my code to a separate text file.But the problem is, as my results comes from a loop, my text file shows only the last result, not all of them.Like if the loop runs 5 time the text file shows the result for the 5th step.But i need to store all of them (1 to 5).Can I use awk to print the output field and store to another file and creat a new line so that the next output field goes to a new line?(just an idea, dont know).
#!/bin/basth
for (( i=1; i<=5; i++))
do
./file.exe > output.txt
done
(bare with me as I am sort of new with scripting) I am trying to figure out how to run a script that does a basic chkconfig and to get only those services that are running, but changing the color of "on" to red in my output file. Here is what I am working with so far:
Quote:
#/bin/bash
RED=$(tput setaf 1)
BLK=$(tput setaf 0)
[code]....
*I had to substitute a "-" and <colon_symbol> for ":" in front of the on's, because the forum thought they were smiley faces (i.e. n) how to make the "on" to be red while the rest of everything remains in black text. I have been trying to read up on sed and awk, but it is still pretty much a mystery to me right now. There will be other things in the output file that I wouldn't want a rogue "on" to be in red, so just the instances of "on" in that one chkconfig return.
I've created a simple script based menu. This menu will be accessed by only a certain users via ssh.When user logs in, the menu will automatically run. (configured at user's .bash_profile).How do I force the session to close when user hits Ctrl-C or Ctrl-Break ?In a nutshell, I don't want user to have access to shell.
View 11 Replies View RelatedBasically the requirement of the script are :
1. need to run like a daemon which will read an active squid logfile in a refresh pattern of 5 minutes
2. calculate the total number requests based on different domains that the client access
3. calculate the total of number of requests based on different domains as well as the turnaround time of these access is more than 5 sec that the client access
4. calculate percentage of item 3 over item 2
5. report the results in html format as follows:
Domain Name Total req Req > 5 sec % of req > 5 sec
6. able to access the results from web browser.
I'm timing how long it takes to run a command foo. I'm looking to append the results from the time command to a file, and discard the results from the foo command. I tried the following, but it didn't do what I want:
$ time ./foo > /dev/null >> output_from_time_command.txt
how to re-arrange the bookmarks in pcmanFM? It is a file manager.
View 2 Replies View Relatedso i am in the stages of experiementing and right now, on Linux Mint KDE, there doesnt seem to be a way to arrange my desktop icons in the way i want the icons always want to be aligned/sorted on there own even if i click lock off and snap to grid off as well ive tried folder view, default desktop and newspaper but it hasnt worked so far is there a way to be able to arrange my icons anyway i want?
View 3 Replies View RelatedI recently started shell programming and my task now is to do a menu display.Currently i am stuck whereby user will input both title and author and it will delete it.
Do i have to use sed command?
Is there a way to arrange icons from terminal? Was thinking to make a bash scripts as sometimes(quite seldom) my icons just rearrange on their own and it's damn annoying having to drag them to the place they were.
View 1 Replies View RelatedI'm on 10.10. way to align the icons on the desktop to the right side instead of the left? When I click "Organize Desktop By Name" everything ends up on the left by default, I want to have it default to the right instead. Doesn't matter how complicated the solution is, I can do it as long as someone can give me the basic instruction. it's really only because I have an awesome desktop background, and the best part is covered with icons.
View 5 Replies View Related