I want to read the user username and password available in a password file. I want the password to be stored in a user home directory and my perl script should read , whenever needed from that file. Am not a Perl programmer and I want to set this for admin related activities. In what syntax I need to write the password file and How to call them using the perl script.
View 3 RepliesI 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.
I remember that some time ago I found a guide on the Ubuntu website about adding samba shares to mount at boot via /etc/fstab. The guide also mentioned using a credentials file to store the username and password.
However, the password was encrypted (in md5 I think) and it could not be read directly, but it still worked with fstab mount. If I remember correctly, the file contents were similar to this:
Code:
useraname = user
password = --md5
where was replaced by the encoded password. All was done in terminal. Recently I changed computers, and re-installed Ubuntu, but I forgot to save that file so I am not sure about the contents. I would like to know how to do this again, but I can't find the guide anymore. Does anyone know how to do this? Storing the password in plain text in file readable only by root is not acceptable because it can be read by someone mounting the drive from other operating system, and the share cannot be mounted/unmounted by regular users (which is possible with the md5 encrypted password).
There is the Archive::Zip I think I can use with Perl 5.10 but I don't know how. I don't want to read or write any files, just zip something in memory, with best compression, like
$text = "this is a test";
$zippedtext = &Zip($text);
sub Zip {
[code]...
I guess it's only a few lines.
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 ?
I have two cryptsetup volumes with the same password that I want to open in a bash script, and I want to avoid writing the passphrase twice. I was thinking of using read -s. Is there any security problems with this?The other alternative would be to have a password file on a small partition encrypted with a passphrase. Then only give the passphrase and let the script open up all encrypted volumes using the password file. However this seems overly complicated. But is it more secure?
View 3 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?
I need user to input a password through command line in Windows cmd prompt. Is there a way to encrypt the input (such as put it into ......) when user is typing ?
View 2 Replies View RelatedI am looking for some source package which will convert plain text file to html file without using perl.
I mainly need to do this on an ARM platform, so if I get sources I can cross compile it.
I have script that I'm working on that updates a username in all the files that are called blah.inc for my framework. since i host a bunch of these web apps i need to do it to all of them. so I need to figure out how to update these files automagically with out me watching it to call vim every time. heres what I have so far
Code:
This finds the files but now i need to figure out how to do s/bob/fred/g on those files.
I have a single file that contain multi-text something likes this:
Quote:
No. Time Source Destination Protocol Info
185 27712.068199 192.168.18.23 192.168.18.191 SMTP S: 250 2.1.5 Ok
No. Time Source Destination Protocol Info
186 27715.068293 192.168.0.50 192.168.5.2 TCP suncacao-jmxmp > 44693 [ACK] Seq=1 Ack=1 Win=64807 Len=1380
[Code].....
I am using a backup system with cron + tar. Since the server is very busy, I get often the cron-email: "The file XYZ has changed while reading". This message is a bit annoying and I see it as critical point in my backup system. I believe that this file is then not in my backup. (Is that correct?) Let's imagine the hard disk dies and I have to recover the system and my personal data, and in the night the mysql-table XYZ was not in the backup, because it was in read-usage. I would then have lost this table forever. Is there any way to tell TAR, that it should force the file to be included (if in read-usage, then wait 2 seconds and try again)?
View 9 Replies View RelatedI 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.
is there any API to read content of PDF file & store it in buffer?
View 14 Replies View Relatedbeen playing around making a server to play some games on running centos 5.5
what ive spent a while looking for (a few days) is a way to make a file which i will call startup this will contain some values
Code:
mod_directory="etpub"
port="27960"
log_name="console.log"
vm="0"
dedicated="2"
[Code].....
I have a .bkf backup file, created by the Backup utility that Microsoft provides with Windows XP. Is there a way to read the contents of the file using a non-Microsoft OS, preferably Mac OS X or Linux?
View 1 Replies View RelatedRunning 10.04 64bit. Installed the latest Gnucash from repositories. Using Quicken 2003 and exported an account to a qif file. When trying to import to Gnucash the error "A bug was detected while reading the QIF file." displays. This, at least is more than I was able to do previously (prior to 10.04 and several earlier versions of Gnucash running in 8.04 through 9.10). Before it would cause Gnucash to crash and shutdown. I select a specific account with categories from Quicken to export. I can import to KMymoney and use it but that program is not compatible with the wife and does not do reconciliation reports by default.
View 3 Replies View RelatedCode:
I'm trying to make several files: each named after the display and containing resolutions. But for some reason I get null when trying to read lines.
i am trying to boot linux pc from network booting.. so using pxe,tftp,dhcp(1).i configured my /etc/dhcpd.conf file as...
ddns-update-style none;
ignore client-updates;
allow booting;
[code]....
I have a file named file.txt with the following contents
Code:
19 man
24 house
44 dyam
90 random
I want to read the file into array and store each line in each index. I've tried using the following code.
Code:
dataarray=($( < file.txt ))
It stores each word in each index rather than each line in each index.
My requirement is that I wanted a shell script which should read the alert.log(oracle) and should send the alert to my email if any error encountered on daily basis. I have a script which does the same job but at the same time it creates a new alert.log whenever any error occur. But I don't want the new alert log I wanted to read the same alert log daily and if any new error come should alert as email.
View 3 Replies View RelatedI know that cat can output the file, but how do you store that output in a variable to process:
Code:
CONTENT=cat file.txt
This doesn't seem to work?
I have an situation where I want to read a file into my script that lie on a remote server. I have ssh-keys set up just don't know how to do this.
View 7 Replies View RelatedI have a binary file, which I need to process using my C++ application. Only thing I know is first chunk of the file is long, second chunk is int, third chunk is char etc... The binary file actually contains something like below. (which is represented in hex base).
D7 07 00 00 00 00 00 00 37 18 00 00 DE 07 ............ so on.....
I need to procees the file in the following way.
* I know the first data segment in my file is long. So it takes 4 bytes.
* so I need to read the first four bytes. That is D7 07 00 00.
* Then I need to reverse this as 00 00 07 D7.
* Finally I need to get the decimal value of above hexa decimal line. ( 00 00 07 D7)
* i.e. 00 00 07 D7 (in hex) = 7D7 (in hex- after removing leading 0 s) = 2007 (in decimal)
Like wise I need to process the whole file.
I know that this is a really simple thing to do but I just can't figure it out. How do I read a text file into an array in C++?
View 3 Replies View RelatedI have two files of data with different numbers of columns and rows. I want to read this two files in two arrays and then compare for example the second column of first data file with the third column of the other text file and if the difference between of two numbers is less than a threshold then the program print the information in the rows which fulfill this condition in the third text file. I have written below program but the problem is that it does not go through all rows of second file.
declare -a a
declare -a b
r=` awk '{n++} END {print n}' second.txt `
echo $r
awk '
{
[Code]....
Actually I have two data files one of them contains 44406 and the other one has 12066 rows and I want to check whether the difference between the components of two specific columns is less than a threshod but I have simplified it here. I had written this code and then I have realized that this code just goes through the number of rows as the same as the first.txt file and ignores the rest. I could not find the problem yet.
I made a string key-value mapping struct in C, and functions to add and remove entries. I would also like to write a function to read in this file format:
Code:
key: value
another: another value
[code]...
I need to Read a path of a file witch is written in Text file i used this
Code:
FILENAME=$1
while read line
do
echo $line
done < $FILENAME
it worked and showed me the Line witch was written in my file but now my problem is how am gonna use that line as a path i mean for example if am gonna execute a linux command on that file like dpkg -i /path/to/the/file how am gonna export it from The $Line variable and use it after the command.
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 installed kernel 2.6.34 to fix my lid closing issue, and that went great. but now when i go to reinstall my broadcom i get this error. Code: Reading package lists... Done Building dependency tree Reading state information... Done bcmwl-kernel-source is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Setting up bcmwl-kernel-source (5.60.48.36+bdcom-0ubuntu3) ... Removing old bcmwl-5.60.48.36+bdcom DKMS files...
[Code].....