Im a bit stuck with a simple script that im practicing with... im trying to get my head around some simple scripting. Basically i want to write a script that will work as below: It will ask the user to enter their userid. If its correct it will say 'Correct' If its the wrong id (But the ID exists in /etc/passwd) then it will say 'incorrect' If its not a valid userid it will say 'doesnt exist'. What i have so far is:
# If the user enters their own userid they will get a comment saying 'correct' $LOGNAME) echo "Correct";;
# If they enter another users ID (That exists in the /etc/passwd), then they get a message to say 'incorrect userid used'. Im not sure what i need to do here to get it to check the /etc/passwd to see if the input exists in there.... im guessing some kind of simple 'if' statement to say ---- "if 'input' exists in /etc/passwd then echo "incorrect userid used"
# If its entered incorrectly and not a valid ID then they will get this comment. Again, im guessing this part would be similar to te above option..... *) echo "not a valid ID";;
Ive managed to work out how the basic Case staements work, but to add a conditional statement based on the input, i just cant figure out. I have tried looking on google, and found some help but it doesnt really explain how i check the input against the /etc/passwd.
the following works and BASH doesn't complain, but VIM highlights the closing square bracket is if it sees a syntax error. Is there a better way to express regex in a case statement or is this an issue with VIM?
As you can see, I want to pass arguments depending on the option(s) chosen by the user; ie. --snooze, or --channel. By default, if no options are chosen, I'll display a usage message; though in the future I'll provide some sane defaults. I'd like to create a case statement to handle passing arguments to any number of options; something like:
wakethehellup.sh --snooze 20 --message 'wake up!'
and for the other arguments, it would have a default set. The case statement I provided fails with a syntax error "syntax error near unexpected token `$2'" near the '--snooze' in the statement, so I take it you can't pass a parameter in this way; but I'm confused as to how I'm supposed to pass different parameters to different options without the options being confused as parameters.
Here's my need: If Calendar Day= Then FCPeriod= And FCYear= Jan 11 to Feb 1002Current Year of Feb 10 Feb 11 to Mar 1003Current Year of Mar 10 Mar 11 to Apr 1004Current Year of Apr 10 Apr 11 to May 1005Current Year of May 10 May 11 to June 1006Current Year of June 10 June 11 to July 1007Current Year of July 10 July 11 to Aug 1008Current Year of Aug 10 Aug 11 to Sept 1009Current Year of Sept 10 Sept 11 to Oct 1010Current Year of Oct 10 Oct 11 to Nov 1011Current Year of Nov 10 Nov 11 to Dec 1012Current Year of Dec 10 Dec 11 to Jan 1001* Current Year of Jan 10
* Note for Dec 11 - Dec 31, The Next Year to be used IE: Current date is Dec 28th, 2010. Year = 2011 IE: Current date is Jan 8th, 2011, Year = 2011. Looks like I'll need a case statement with some regular expressions...
We are building our C++ project in Kdevelop IDE. Every time we run "Run Configure" from the "Build" menu, a file named "libtool" gets automatically generated. This file contains a statement as "ECHO="echo"".f we run "Automake", without modifying the "libtool" the system hangs and theputer needs to be restarted.Therefore every time we run "Run Configure" we need to include the line "echo="echo"" below the statement "ECHO="echo"" manually.I think a script can be written which does the above on its own.I am not a shell script programmer, I know the good tutorials for shell scripts are available on the net, but learning scripting only for this task would be time-consuming and painful.
I do 'mkisofs -iso-level 1 -o image John Smith.txt'. Only an example. When I mount image, ls outputs john_smi.txt. So it has shorten to 8.3 and translated ' ' into '_'. This is in accordance with the manual, although it doesn't say the conversion will be done.
-iso-level level ......................... With all iso9660 levels from 1..3, all filenames are restricted to upper case letters, numbers and the underscore (_). ...........................
However, as it did not reject the file name, it should have converted it to all upper case, it seems to me. And -iso-level 2|3 does the same thing.
root@darkstar:~# mkisofs -iso-level 1 -o image John Smith.txt Total translation table size: 0 Total rockridge attributes bytes: 0 Total directory bytes: 0
I am bussy with a litle bash script but i have now a problem.I have a file on the server with every time different text.Somewere in this text the is the following line:PHP Code:<BR><DIV CLASS='itemTotalsTitle'>2 Matching Service Entries Displayed</DIV> I want to make a bash script that replace this line when it says:"0 Matching Service Entries Displayed"To a other text like:"There a no knowing problem(s) on this moment."]If there is a other number than "0" than replace this line with:2 problems have been found on this moment, whe are bussy to fix this problem
I am looking for a powerful command line tool to send and receive data via socket I mean define IP , port and data other options for command to send and receive data from sender.(like a high level socket programming)
I tried to add my wife , and when I put in a password for her, this error comes up."Please set a valid user name consisting of a lower case letter followed by lower case letters and numbers." I did all that and I still can't set a password for her.
I want to have the System Bell ring when a process is over say a download. First I created a file named 'beep' that plays the System Bell. Because the System Bell rings by hitting cntrl-G the 'beep' file looks like this.
I then give the file owner execute permission. I know that this command would serve my purpose.
However I want to sharpen my Bash programming skills. I wanted to write the Bash script along the following logic and with the fewest lines possible. Not really a script, I want to insert this short script via command line instead of a file. Let's say the download has commenced and the PID = 16666.
until ps -p 16666 do /root/beep done
Now obviously 'ps -p 16666' will already evaluate to true. My question is, is there a way to maybe enclose 'ps -p 16666' and prepend some operator that inverts the condition to where until 'ps -p 16666' evaluates to false then run /root/beep?
On Ubuntu 9.10 I installed Python 3.1.1 successfully with Synaptic Package Manager. However the Python interpreter cannot find my scripts, currently in /home/dave/pycode. This appends _temporarily_ but python remains clueless about location of my scripts. Searched Internet and some speak of .rc or .bashrc or .profile..files. Found some of these and opened with Komodo : they are Linux script files and I am clueless as to how to modify.Currently I can import my scripts only if I change to the /pycode dir before running.Lutz's Python book says to change PATH file - Ha .Sobell's "A practical Guide to Ubuntu Linux" is no help. Ubuntu's own on line help is worth less than a fart in a hurricane. Ubuntu's gedit would not even open bash.bashrc.
I am trying to create a "GUI File Transfer " Application , for transferring the files within the network. For That I will obtain User name, Password through the GUI, I will have to append username and password in a single line and run it . I am facing difficulties in exploring the "command",
Notice the extra" file size" lines in there? What's causing that? I'm trying to learn more bash skills. I have no experience with awk because I have been unable to understand it's basic necessity. But I thought maybe if I try it with some test scripts I might become more interested in using it more and expand my very limited capabilities.
where a client need to login to server after a connection has been established if login is not sucessfull connection should be terminated I need it in c language
server asks client name and password if authenticated , a connection is established . and if client is new can also register its name
I have done it using files but its not working when asks for user name it searches a file with that username if a file is found and password with same as username it opens the username file check for the string if it matches with the string login is ok