Code:
#!/bin/sh
onexit()
{
echo "Error At line - $1"
}
[Code].....
What I want to do is to make the onexit function to handle any generic error that comes during script execution. I am not thinking about using 'set -e' since it will cause a quick exit. I did 127, because I wanted my script to handle atleast the command not found error. I am not thinking about handling any interrupt or any other signal at the moment.
#!/bin/sh
trap "echo Haha" SIGUSER1
echo "asit"
count=1
while [ $count -le 10 ]
do
echo "Loop #$count"
sleep 10
count=$[ $count + 1 ]
done
echo "This is the end"
Why this is showing following error?
trap: 3: SIGUSER1: bad trap
I have a function in perl which I want to use trap all errors a script ocurs which the script does not explicitly handle. These errors are then logged to various places. So I tried to use a eval block but the problem I have is sometimes if you put a die statement in the evaled script it doesn't get handled. What I have so far is:
[Code]....
I would like to know how do I print the line # in a script. My requirement is, I have a script which is about ~5000 lines long. If there are any errors happen I just exit. And I would like to add the line # of the script where the error happened.
View 3 Replies View Relatedsimple bash code:
Code:
#!/bin/bash
trap "echo 'you got me'" SIGINT SIGTERM # to trap ctrl+c
echo "Press ctrl+c during 5 sec loop"
for ((i=0;i<5;i++)); do
[Code]...
How come code behaves normally and stops when ctrl+c signal is caught and resumes, but after I use at least one timeout read in the code it looks like, if signal is caught again it doesn't pause the execution but skips the loop. If you remove -t (timeout) option from the read, both loops look the same!
I have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
I have written quite a few separate bash & scripts and php scripts that up to now I have run from cron jobs. However I have to estimate how long each takes to run, before running the next and so it probably takes much longer than necessary to run them all. They have to run in order.
Now there are so many I am thinking it would be better to have a master bash script that would run one after the other, but I am not sure how to get the master script to wait before starting to run the next script. Is this possible and is there a command that will make the script wait between bash and php scripts , for them to finish, before running the next?
I would like to get the filename (without extension) and the extension separately. The best solution I found so far is:
Let FILE="thefilenameofsomefilesfor_instance.txt"
Code:
NAME=`echo "$FILE" | cut -d'.' -f1`
EXTENSION=`echo "$FILE" | cut -d'.' -f2`
I think it would be better to count the len and remove 3 chars to right to get the extension, but it can be macintosh filenames with have 4 chars for extensions.
I would like to learn the right way, or some neat technique, to discover why a compiled-from-source application just unaccountably quits. it it easy enough to discover that the pre-compiled version from Ubuntu does work just fine. My motivation is to explore, and maybe try to modify it a little for myself.
At my level of programming expertise, I have often used the "sh configure, make, make install" route; and sometimes made small changes to the code eg. changing a window size and similar. C and C++ tutorials teach the main rules, but I am no expert at classes, structures or obscure expression tricks.
The application is a QT type called "qantenna", used for electromagnetic simulation of antennas. The source I downloaded from SourceForge. Although a KDE application, the repository version seems to run just fine on my Ubuntu 9.10 Karmic (soon to become Lucid), on its Gnome desktop.
The compiled version behavior is that the main window opens and runs OK, with the GUI view operating with fully alterable views. As soon as a valid antenna file is loaded, the whole application instantly quits.
How does one deal with an application that gives no chance to catch it doing things wrong?
I'm trying to get SNMP setup so I can send custom snmp trap messages. I followed this "How to" [URL] and I think I have it setup and working. This is my fist time messing around with SNMP, and I don't know where to check to see if I received the trap message. Do the snmp trap message even get logged any where?
View 1 Replies View RelatedQuote: Attackers are constantly changing their tactics and adapting to what the security community and researchers are doing, and it's not unusual for the bad guys to adopt techniques used by their adversaries. The latest example of this is a malware gang that has deployed what amounts to a honeypot designed to monitor the activity of researchers or other attackers who try to access a command-and-control server.
View 1 Replies View Relatedhow an agent itself generate trap on some particular situation arises
View 1 Replies View Relatedhow can I configure snmp and snmptrap to receive a trap when the used disk (/home/linux) is 20%
View 1 Replies View RelatedI wanted to know is there any way to send a content of a file as snmp trap with snmpd agent of linux?
View 3 Replies View RelatedI want to generate snmp trap when cpu usage is high..me how to configure snmpd.conf....to generate this trap...
View 2 Replies View RelatedIn cisco 6509 switch port 1status is being traped it is showing "SNMP CRITICAL - *down(2)*"
View 2 Replies View RelatedI need to rename the resulted searched files from a loopI have the following code:
find . -name DOC* | while read i
do
find $i -type f -name '*.txt'
done
basically, I am searching for all txt files inside any folder starting with DOC name.this code is working fine with me.I need to rename those .txt files to .txtOLDOS: Ubuntu 10.4Bash shell
I am trying to write a bash script that sources another bash script. Essentially, I need a few lines to check to see if a certain variable is set. If not, I set it manually, and then source a scripts with that variable in the path. I wrote a test script to try it, but for some reason the last line does not work. Here is what I wrote:
#!/bin/sh
source ~setupdir/setup.shrc #just a test, this line works
echo ${#SETUP} # prints 0 if setup is not set, which it isn't
if [ ${#SETUP} -eq 0 ]
then
SETUP="~setupdir"
fi
echo $SETUP # prints ~setupdir
[Code]...
i'm in the process of learing C++. currently i'm creating shell scripts to get things done. i'm just curious how, as a programmer using C++ you would get a similar job done.as an example i have a script that takes the contents of files, pipes it to some sed and awk commands, which is piped to create a new file. that file is then imported into a mysql database.if you were going to do this in C++, would you call the sed/awk programs to modify the file, or can it be done within the program itself? i'm probably jumping the gun here because i've just started learing about pointers so this is above my ability
View 12 Replies View RelatedI have beat this enough and don't get what should have been a very simple thing to do. I build a variable;
Code:
CLIST=java,lua,python,php,perl,ruby,tcl
CLIST will be used by another bash script but I need to replace the commas with a space. I
[code]...
Creating script that converts hex to dec. But without using bc calculator or other methods that could convert it in one line. I need to make something like this script that converts dec to hex.
View 1 Replies View RelatedI have a basic awk script that can read a file named 'server_info' and output to the screen which fax lines are not working. Now I want to make the script execute commands instead of printing to the screen but I am having trouble... This is better explained by my code below:
test.sh Code: #!/usr/bin/awk -f
#
#The name of this script is test.sh
[code]....
Distro: Centos 5, PHP 5I have done a bit research on running bash commands from php and there was little success. This is my relevant php script
<?php
echo exec('pwd');
?>
[code]...
I am trying to build a function inside a script.
Code:
#!/bin/sh
#System commands and other configurable.
IPT=/sbin/iptables
IP6T=/sbin/ip6tables
IPST=/usr/sbin/ipset
MODP=/sbin/modprobe
GET=/usr/bin/wget
INT_NET=192.168.1.0/24 .....
I can find lots of tutorials in how to use if, then, else. However, how do I define a variable inside the function?
SEE>>
Code:
for c in $ISO
Also, am I using the 'test' command correctly( -/+ week as valid test)?
I'm somewhere between Novice and I have no idea what I'm doing with bash scripts. I'm writing a script to deploy images using partimage on my company's desktops, and while I have just about everything else figured out I have one issue left.Each of our 4 sites that will be using this disc will have a deployment server due to the fact that our sites have dedicated point to point links that our business traffic is conducted on. I need to be able to determine what site I'm at based onubnet and set a variable based on this determination. What I don't know is how to get the IP address in to an if statement, and properly determine subnet. For example:
192.168.1.0/16 - 192.168.7.0/16 need to use DEPLSERV01
192.168.8.0/16 - 192.168.16.0/16 use DEPLSERV02
192.168.17.0/16 - 192.168.24.0/16 use DEPLSERV03
I know it's a very silly question but could someone please explain the difference between "/bin/bash" & "/bin/sh" I was under the impression that both are same but following output on my Ubuntu 8.10 is making me raise my eyebrows.
Quote:
parag@station3:~$ ls -l /bin/bash ; ls -l /bin/sh
-rwxr-xr-x 1 root root 725136 2008-05-13 00:18 /bin/bash
lrwxrwxrwx 1 root root 4 2008-12-03 21:42 /bin/sh -> dash
parag@station3:~$
i want to run bash script on website.i still have to choose between unix hosting and windows hosting. my web hosting service offer Own Cgi - Bin PHP,ASP,MYSQL,MSSQL, and script schedule(cronejob). This is script
#!/bin/bash
#Store arguments from bash command line
fight=$1
support=$2
msg=rmsg
[Code]....
Having a problem with an unwanted redirection in in a function call. Although this isn't the function it does illustrate the problem:
Code:
#!/bin/bash
doat () {
ALL="sys1 sys2"
for Sys in $ALL;do
echo "---> $Sys <---";
echo $(eval echo $1);
[Code]...
figure out how to get the variable into the command without outputting to the file in the eval statement? So that ssh line that gets executed would look like the following to each iteration of the for loop:
Code:
ssh root@$Sys rpm -qa|sort > /trans/${Sys}-rpm-list.txt;
doat works when the incoming argument doesn't have any redirection in the command.
Is it possible to use Gambas as a GUI to read text string variables that are input by a user, and use the variables in a bash command?
I know how to do this simply with bash, but I want a GUI that little kids can easily use.
Just a simple BASH for loop to read the file path from a text file (clean.txt) echo the variable for debug purposes, and scp it to a server I have using port 50 for SSH.
I've already formatted the entries in clean.txt to handle spaces correctly, using sed replacement.
Example from the clean.txt file:
Code:
/MP3/NAS000000001/Barenaked Ladies/Barenaked Ladies - Barenaked For The Holidays/20 Auld Lang Syne.mp3
/MP3/NAS000000001/Barenaked Ladies/Barenaked Ladies - Barenaked For The Holidays/14 Deck the Stills.mp3
[Code]....