Programming :: BASH - Script To Check Installed Software?

Apr 1, 2011

I am looking for a little help with a Bash Script. I have just finished a PC GUI application using Pygtk and glade. But, I would like to write a Bash Script to check if the user has the needed software to run my application on his or her computer. For example, the software needed to run my application among others are Python, nmap, and pygtk. Code: which python which nmap With a little bit of research I found:If python or nmap are installed on my computer and I run the above commands, the above code will tell me where it is located. But if python and nmap are not installed and I run the commands, nothing is displayed.

Could I get a few ideas on how I would go about getting a boolean value to determine whether or not the software is installed or not. I would like to use the boolean value in my bash script to perform other actions ie echo "Python is not installed" or actually install Python if the boolean value is false.

View 3 Replies


ADVERTISEMENT

Ubuntu :: Bash If Statement To Check Installed Applications

Jul 14, 2010

I know with if statements in bash you can do
Code:
if [ $fruit = apple ]
then echo "Good, I like Apples"
fi
But I was wondering if you could do something like this:
Code:
if [apt-cache pkgnames smbfs = smbfs doesn't exist]
the apt-get install smbfs
fi
If so how would you capture the output from apt-cache pkgname smbfs to determine if it's installed?

View 9 Replies View Related

Programming :: BASH - Can't Check If XScreenSaver Is Running

Feb 26, 2011

I'm having trouble trying to make a script. What I want to do is check if xScreenSaver is running in my user account. If not, run it. If it's running, kill it.

So this is the script I've made:

Code:

The problem is that I've echoed the output of $(pgrep -u $(whoami) xscreensaver) and it always seems to add 4 numbers to the pid, even if the pid doesn't exist. What do I mean by "doesn't exist"? That no xscreensaver is running in my user, and if I run pgrep -u $(whoami) xscreensaver in bash, I get not output, but if I run the command though the script, I get (for instance) 4050. If I run it again, I get 4054, and again 4058... etc. What the hell is going on with that?

View 5 Replies View Related

Programming :: Bash Function Check For Valid IP?

Apr 16, 2010

I have been working on this way too long now...this *should* be simple. I must be missing something simple at this point.

Code:
function f_is_ip()
{
if [ "`echo "$1" | /bin/egrep "[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}"`" != "" ] ## Error on this line

[Code]....

When I echo $1 ## prints 192.168.1.22

View 4 Replies View Related

Programming :: Command In Bash Script To Check If Tar Is Currupt Or Not?

Jan 20, 2011

As part of my script I need to compress a 50Gb file. but I need to check that the compressed is not corrupt if it is ok it will then send it over if not it will report an error.

cd /home/ops/Desktop/temp
tar czvf backup-"$(date +%d-%b-%y)".tgz /home/ops/Desktop/temp

I need some here to check the compress file then somelike if the file is

if
send the file
else
send an e-mail reporting a failure

View 4 Replies View Related

Programming :: Bash - Statement To Check If A File Exists Or Not?

Oct 6, 2010

This script that I found online does the job it promises. it does convert the files to mp3 without an issue. What I need to include now is an if statement that says If $file.mp3 exists then delete $file.wav

Code:
#!/bin/sh
# name of this script: wav2mp3.sh
# wav to mp3
# Credit to the script creator (Nikesh Jauhari):

[Code]...

After that I'm stumped as to how to do the if statement

View 14 Replies View Related

Programming :: Bash Script To Check How Many Files In Directory?

Jan 31, 2009

i was wondering if there's a bash script to check the amount of files in a directory with an IF statement..

View 8 Replies View Related

Programming :: Bash Script To Check How Much Free Space Is Left In /var Directory

Feb 24, 2011

I'm creating a bash script to check how much free space is left in /var directory then, if it hits a certain threshold, delete certain files with numbers for extensions (e.g. fileA.1, fileA.2 fileA.3, and fileA.4, fileB.1, fileB.2 fileB.3, and fileB.4 ). Here's a snippet from my script:

[Code]...

If I use a * as a wildcard for the number extension, the script fails. Maybe regex would work here, but I'm not particularly accomplished at it. Or some other construct.

View 18 Replies View Related

Programming :: Check If The User Is In Correct Directory Before Executing Bash Script

Dec 10, 2010

I have been searching for 90 minutes for something that I "think" should be fairly easy. I'm pretty new to Bash Scripting so I could be completely wrong. Then again it may be a weird request to even need something like this. But here it is.I have a script written to convert data from one of our software version to another. The only thing I need to add to it is a "check to make sure the user running the script is in the /tmp directory".

View 7 Replies View Related

Programming :: Bash Script: Check Stderr After Command "find"?

Jul 8, 2009

I use command "find" in my bash script: if the filename exist command find work quiet, and if the filename not exist I see the message "find: /tmp/filename: No such file or directory". My problem is following, i want to have in my script something like this:

find "/tmp/filename" -type f -delete | "if no_any_errors execute command1" , if file_not_found execute command2"

View 1 Replies View Related

Programming :: /usr/bin/expect : Script To Check Server Load Using Both Expect And Bash?

Jul 27, 2010

I am trying to make a script that can be used to check server load on a remote server and produces sound on our local machine, when server load exceeds a particular limit.1. I want to execute command uptime or uptime | awk '{print$10}'on the remote server and store the result in a variable(say x), and later use it in the bash script.

Bash Part
#!/bin/bash
x=$(/root/Desktop/exp)

[code]...

View 1 Replies View Related

Programming :: Check Menu & Check List In Utility Dialog?

Aug 19, 2010

I want to put check menu & check list in utility dialog.i dont know how i do this

View 1 Replies View Related

Ubuntu :: Check What Version Of GRUB Installed - The Program 'grub' Is Currently Not Installed

Dec 18, 2010

I wanted to check what version of GRUB I have installed. I went to terminal and typed grub --versionI got this message back: The program 'grub' is currently not installed. You can install it by typing: sudo apt-get install grub

I am running Ubuntu 10.10 alongside windows xp pro. When I turn my pc on I have the option to boot to ubuntu or xp and at the top of the window it says that the version of grub running is "GNU GRUB Version 1.98+20100804-5Ubuntu-3" how I shold go about installing GRUB 2 or just leave it as is.

View 2 Replies View Related

Programming :: Bash: Printing The Line Number In Bash Script?

Feb 4, 2011

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 Related

Programming :: Bash Ctrl+c Tarp And Bash Read With Timeout?

Jan 24, 2010

simple 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!

View 10 Replies View Related

General :: Running A Check In Bash Script?

Apr 3, 2011

so I wrote a small script that pretty much just takes in two numbers and counts from the first to the second, e.g.

unknown-hacker|544> count.sh 1 3
1
2
3

My problem is I want to make it so that if you input invalid parameters, such as non-numerical characters, more than 2 numbers, etc., you'd get an error message

View 15 Replies View Related

General :: BASH Scripts Check For Arguments

Mar 5, 2010

I know that $1 ... $n will set the argument to the values but what happened if I have many options in one scripts lets suppose.

I can run:
myscript -1stargument -2ndargument -3rdargument
or myscript -1stargument
or myscript -1stargument -3rdargument

In my scripts I have
if [ $1 = "-1stargument" -o $2 = "-2ndargument"] #for every instruction I need
fi

but is there any way to do:
if [ (any arguments or commands) = "(mydesired option ] ; then
(do this...)
fi

View 6 Replies View Related

General :: Check Which Version Of Bash I'm Running ?

Aug 16, 2010

How can I check which version of bash I'm running

View 2 Replies View Related

General :: Can Bash Check If Screensaver Is Running

Nov 13, 2010

I have a bash script that messages the user periodically. Is there any way in the script to check if the screensaver is running, so the script doesn't spam messages while the user is away? The xscreensaver process is always running in the background, I've noticed.

View 5 Replies View Related

General :: Check If Directory DOES NOT Exist In BASH?

May 10, 2010

i tried to create a if else statements or either an else statement I get a message saying that the directory exists (mkdir: cannot create directory `./MAY2010': File exists I am running this in a crontab file and I dont want any output telling me that the directory exists. I just want to check if the directory doesnt exist, create one else do nothing (not even a message telling me that the directory exists).

[Code]....

View 8 Replies View Related

General :: Constantly Check Whether A Cd Is Mounted Or Not Using Bash?

Mar 20, 2010

i need to check if a cd is mounted or not using bash ... how is that possible?

View 8 Replies View Related

Red Hat / Fedora :: How To Check That RPM Installed Or Not

Jan 20, 2010

I'm using centos. I want to know, how to check that rpm is installed or not (through rpm cmd only).

View 4 Replies View Related

General :: Check If Ftp Is Installed?

Jul 26, 2010

I found that I have several services running related to ftp

Code:
cat /etc/services | grep ftp
ftp-data 20/tcp

[code]...

View 2 Replies View Related

Programming :: Reading A Bash Variable In Bash Scripting ?

Nov 26, 2008

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:

View 3 Replies View Related

Programming :: Run Multiple Bash And Php Scripts From A Bash Script?

Jul 25, 2011

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?

View 5 Replies View Related

Ubuntu :: Bash - Check If All The File Names Are Correct?

Sep 23, 2010

I have bash script for converting files. I have a problem. If file name is "corrupted" then mv command for that file will not work. For example file with "-" in front of the name.

Is there a way to check if in some folder (subfolder) all the files have correct file names or they don't?

If they are all correct -> OK proceed with execution of the script!

If they are not all correct -> NOT OK stop with execution of the script!

View 4 Replies View Related

General :: Bash Scripting Auth Check For Pop3?

Mar 30, 2010

I need to make a bash scripting, based on a password and a user,that connect to pop3 server and see if it login,if you can,return ok, otherwise return ERR .

View 10 Replies View Related

General :: Bash Script File Access Check?

Dec 10, 2010

I have been using linux for a bit of time but would still class myself as a noobie. I dont know excatly what I am looking for but I can best describe it in a sanario. I have started creating bash scripts which are looped indefinetly which checks afor files to process. my problem is, is there any way to check if the file is complete, as if the file is large and is being coppied from a different volume the file may still be copying or if the file is being uploaded by a user over samba/nfs, and if the file is still copying the process will most likely fail.

View 1 Replies View Related

General :: Run Command Through Ssh But Also Run A If Check In Bash To See Ifa File Exist?

Aug 1, 2011

So I want to run command through ssh but also run a if check in bash to see ifa file exist. I know that to run ssh commands you do ssh user@server YOURCOMMANDbut if i need to run an if statements, how would this work??

View 4 Replies View Related

Slackware :: Check If Device Is Mounted In A Bash Script?

Aug 1, 2010

Writing a bash script and I need to check if a known HD partition is mounted or not. I do not think /etc/mtab is the place to check. Would /proc/mounts always work? To make it simple like this : cat /proc/mounts | grep /dev/sdb2

View 5 Replies View Related







Copyrights 2005-15 www.BigResource.com, All rights reserved