Programming :: Shell Scripting: Scraping Public IP And Emailing?
Jul 3, 2011
so I wrote a simple script to scrape whatsmyip.org for my public IP address and then email it to me if it has changed. I set this up as a cron job ever 30mins.the problem is, it works for about 18 hours and then will have an issue where it says "line 33: [: too many arguments" Which line 33 happens to be my if statement. Now like I said it works fine for about 18 hours, i run the script with 2>&1 to a .out file so i can see what its doing...this is the output of the .out file, the "xxx" does actually show the ip.."PHP Code:
xxx.xxx.xxx.xxx
already in file
xxx.xxx.xxx.xxx
[code]....
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Jun 5, 2011
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....
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Jun 19, 2009
I made a little rsync script for log transfer.
Code:
SERVERS=(SERVER1 SERVER2 SERVER3)
SERVER1_SERV=(web ftp mail)
SERVER2_SERV=(web transcoding)
SERVER3_SERV=(web ftp mail)
for SERVER in ${SERVERS[@]}
do
echo "Starting tranfer for server $SERVER"
for SERVICE in ${$SERVER_$SERVICE[@]}
do
something_to_be_done
fi
done
But when I run it I get ${$SERVER_$SERVICE[@]}: bad substitution
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Sep 5, 2010
How do I create a user account in a shell script? I know this may sound n00bish to you, but I know it's more than just mkdir-ing the home directory and subdirectories.
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Dec 2, 2010
I need to part a string into separate integers ....like "0x0-0xffffffff,0x20000" into 3 integers 0x0 and 0xfffffff and 0x20000.... i can't use any other high-level languages ..
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Mar 15, 2011
I got two cgi shell scripting files. Is it possible when i am in file 1, to call a function from file 2?
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Mar 8, 2010
I want to compare the following two tab-delimited .txt files (both were subsets of the original files) by comparing Columns 3 and 4 simultaneously. It is easy to compare C3 because both C3s are just numbers. But how to compare C4s?Basically, in File1, "G,G" = G in File2, "C,C" = C in File2, "A,A" = A in File2, "T,T"= T in File2.In File2, A/T in Column4 just equals "A,T" or "T,A" in Column4 of File1. C/T in Column4 just equals "C,T" or "T,C" in Column4 of File1, and etc.
File1:
C1C2 C3C4
ih509rs12345467244750"G,G"
ih499rs6049687244911"C,C"
ih508- 7244977"A,A"
[code]....
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Feb 3, 2010
How do i make my strings case-insensitive while comparing them with an if statement?
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Mar 11, 2011
I have a QNX machine with a slinger webserver running on it. With a cgi script i'm trying to do the QNX cksum call and compare it's output value with a fixed output. When i execute the script at the command line it works perfect, but when execute this script by by the webserver in my browser it doesn't work. Here's my code:
#!/bin/sh
FILE="/home/checkfile"
ORIGCHECK="1712885500"
[code].....
Could it be possible that i'm not allowed to do the cksum call in combination with the slinger webserver?
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Apr 5, 2011
I am trying to modify a script for research purposes and am having difficulty here as I have little prior experience with C-shell scripting.
The script looks as follows (it includes tcl commands like runFEP that you can ignore)
#!/bin/bash
for ((old=1, new=2; old<=4; old++,new++))
a1=${old}%50
a2=${new}%50
do
cat > input${new}.conf <<EOF
${a1}
code....
My question: I keep getting a syntax error when defining my two variables a1 and a2. I essentially need these variables to be
a1 = value of variable old divided by 50
a2 = value of variable new divided by 50
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Jun 24, 2011
I'm writing a script and I have doubts on how to assign values to an already established variable. The value for the vatriable would be coming from a file with three columns. I'm using the awk command for this. Am I doing it correctly? which of the following two ways is the better one or if both are wrong which one should I use?
#!/bin/nsh
inputfile=$1
rolename=$2
[code]....
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Nov 6, 2010
The two shell scripts (t1prog and t2prog) are given below they are working fine. The input for the first program is 't1.det' and for second program is 't1.rnaml'. These two input files are in 'dir1' folder. I am executing the shell like 'sh t1prog > t1out' and 'sh t2prog > t2out' from this directory only. Then I am executing a java program 'java RNA'; for this, t1out and t2out are input files used in the program and I am getting the final output on screen.
The input files 't1.det' and 't1.rnaml' are in different folders with same name and with different values. Each folder specifies one gene sequence input files.
In mfold directory there are 5 directors and each directory contains these input files as shown below
cd mfold
dir1 dir2 dir3 dir4 dir5
cd dir1
t1.det t1.rnaml
[Code].....
for inputs in different directories and executing these and redirecting the final ouput after executing 'java RNA' statement to a file is needed.
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Mar 21, 2011
Examples:
Code:
$ ./test.sh -a -c 2
operator is -gt
remcount is
^ value missing!
Code:
$ ./test.sh -b -c 2
operator is -lt
remcount is
^ value missing!
Yet when "-c" is the first argument, its value is present:
Code:
$ ./test.sh -c 2 -b
operator is -lt
remcount is 2
What could I do to ensure the value of "-c" is picked up regardless of the argument order?
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Sep 6, 2010
I have two files, uploads.txt and downloads.txt. I would like to combine the columns of these files based on the ip address. How can I best do this?
Uploads.txt Code: 192.168.0.147 1565369
192.168.0.13 1664855
192.168.0.6 1332868 Downloads.txt Code: 192.168.0.147 9838820
[code]...
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Jul 22, 2011
I have written the following script in my linux server to add users for LDAP database.But i can't able to run this.
The script is as following
#!/bin/bash
echo "Mention the username which you want to convert LDIF format"
read username
if ["$username" -e "/ldiffile/passwd"]; then
echo "Username already exists"
else
cat /etc/passwd | grep -i "$username" >> /ldiffile/passwd
fi
The output which i got :
. ldapadd.sh
Mention the username which you want to convert LDIF format
yal2361
-bash: [yal2361: command not found
please let me know where need to change and what
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Nov 8, 2010
I want to find maximum length file in a given directory. It should search recursivley. I want this to be done using ls and simple looping constructs.
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May 21, 2009
Is there a way to export a variable to parent shell in shell scripting ?
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Feb 28, 2010
What options should I use when I'm using the sort command to sort the top 5 CPU processes (ps -eo user,pid,ppid,%cpu,%mem,fname | sort ??? | head -5) showing max to min usage?
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Feb 22, 2010
I have recently put together an install script to make my life a little easier.
The server is using lighttpd and I wish for the auth mod to be enabled.
For the line:
I require the script to call the servers external IP and insert it in place of 127.0.0.1
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Feb 15, 2011
What is shell scripting? what is 'bash'?
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Sep 17, 2009
Is there a firefox add-on to script HTML and/or Javascript directly inside firefox
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Jun 8, 2011
#!/bin/bash
str3=""
if [ -z $str3 ] ; then
echo " $? = $? "
fi
[code]....
output:-
$? = 0
$? = 0
why we get 0 for both conditions? I am using FC15.
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Dec 6, 2010
Just give me any project on shell scripting .. to start working on it and practice my self ..
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Feb 15, 2011
I am a bit confused with the first line while writing a shell script , if someone can please explain me the meaning of the first line " #!/bin/bash "the confusion for me is the # at the beginning , in shell scripting # means a comment. but in this case it loads the shell which the script must use,instead of commenting the line how is this possible. where is this defined , any particular file.
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Jan 1, 2011
How do i find out if a particular item is a file or a folder through the terminal ls -la gives 'd' before the permissions for every folder and '-' before every fileLike i want to write a script that backup data if it is a folder and deletes if it is a file
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Jul 29, 2010
I am trying to learn more about global expressions and how it is needed in changing stuff in vi and in shell scipting in general.My question is basic:
How can I add a " # " pound sign at the beginning of every line in a file. So if I want to remark out every line in a file, what would be the global expression for that? Is there a global expression cheat sheet?
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May 2, 2011
I am working on some homework, however i am not here to be spoon fed. I am trying to get the numerical modification date of each file in a folder. Ie lets say there is a file called bob and it was modified 2006-11-23. i want to get it into a variable as 20061123.
Now i currently have this code:
Code:
However for some reason my output is:
Quote:
See how the 2011 has been placed next to it? i ran it with -x and saw this:
Code:
However i do not know how to find a way around this?
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Feb 27, 2011
I am working on a simple script that should take two command line arguments, a [number] and a [name]. The first thing the script should do is check to make sure that no more and no less than two command line arguments have been entered when calling the script - an error message should be delivered if the condition is not true.
If two args have been entered, then the message 'processing "scriptname"' should appear, where scriptname is the name of the script being called. The script should then write to the screen "Hi [name]!", and should write this phrase [number] of times. For example, the command $ myscript 2 joe would produce the output: I have read the manual many times looking for examples, and I am very close by virtue of my own efforts. Further, I have searched these forums and others for good examples, which have also gotten me very close. Still my script is not completing the objective, and I am wondering if someone could point me in the right direction. Script:
[Code]...
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Jan 26, 2011
I am trying to learn shell scripting and came up with a lil first script that I could actually use.I have a basic shell script and all it does is run:
sudo apt-get update
sudo apt-get upgrade
So basically just a shell script that updates your packages. NOW, my question. I made another shell script that makse a bit of a menu and asks what you wanna do, 1 to UPDATE or 2, to CLOSE. How do I make it so when they enter 1 it runs my update.sh ?
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Jul 5, 2011
I am new to shell scripting..I really need ur help or guidance here..I have a text file where i have to use dos2unix command.
Now the problem is how do i pass dos2unix command in the shell scripting after it had read the text file ??
And give out the new text file.
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