The bash tag has no wiki summary.
0
votes
1answer
19 views
manipulate process over ssh by PID
Say there's a process (PID 1501) running on a server. the server has firefox open (as 1501).. from the remote computer, i want to send commands to PID 1501 (e.g. 1501 -new-tab ). How would I run that ...
1
vote
3answers
71 views
Bash script to start a process, grep a line, then kill it
I'm looking to get the version number of an app that doesn't have any kind of --version option.
I'm looking for a bash script that will start the process (it runs until killed), grep it's version ...
0
votes
0answers
19 views
Running Hudson builds with a higher nice level
I want to run build jobs in Jenkins with minimal cpu usage. I've tried this:
Created the directory "jenkinsJdk".Jenkins is configured to use this dir as JDK "testJdk". A sample job uses "testJdk" ...
2
votes
3answers
37 views
Run bash_profile in cron job
I had a problem that my cron script wasnt loading the environment variables so I added the following line:
#!/bin/sh
bash /root/.bash_profile
This seems to have no effect and the path variables are ...
0
votes
1answer
36 views
bash script - nohup not displaying output on my terminal
I setup my start_java.sh script as follows:
#!/bin/sh
echo "starting process"
nohup java XXX
When I run:
[root@box ~]# bash start_java.sh
it prints
starting process
However if I run
...
3
votes
1answer
40 views
shell script (KSH) + set file to param & perform test between param and string
in my linux machine red-hat 5.1 - in ppp file - I have only the signature.pl string !!!
remark - third application write the signature.pl string in to ppp file
I set ppp file in $a param
And ...
0
votes
4answers
63 views
Strategy for gaining ssh access without setting up a router
I'm going to need to administrate someone's macbook pro remotely over ssh. Problem is, they'll be moving between networks so I can't just set up port forwarding on their router. What strategy could I ...
3
votes
4answers
276 views
Bash script is not working as cron job
I have the following shell script
$cat capture.sh
TIME=$(date +"%H-%M-%d-%m-%y")
IP="203.208.198.29"
PREFIX=$TIME$IP
tshark -f "udp" -i eth0 -w /root/captures/$PREFIX.cap&
pid=$!
sleep 2m ...
0
votes
1answer
13 views
Directory replication in New server
Scenario is to replicate all the directories,sub-directories,files,symbolic links present in Linux development Server to Linux QA Server.
Lot of unix users also to be created.
Consider an unix ...
0
votes
1answer
43 views
Lock down Solaris Shell Changing for normal users
I have a few dozen Solaris(5.10) boxes. By default, they are using ksh as the shell. Only a few users have sudo privileges. The rest do not. I don't want my regular users changing to another shell.
...
4
votes
6answers
150 views
how to write a script that only acts on new log entries
I feel like this should be a simple thing but I am having a hard time figuring it out.
I am trying to write a script that will monitor one of the apache log files and take some specific action. But ...
3
votes
2answers
88 views
Octal representation of file/folder permissions using awk?
We have various of machines here with all sorts of hardware and Operating Systems, most of them do regular tasks with bash that an agent executes.
However it came to my attention that some Solaris ...
2
votes
3answers
72 views
How do I start a fresh apache error log?
I did something stupid about 1 million times in a PHP script so my apache error log is now 12 megs! Not exactly a good situation to be in for debugging.
Under what conditions does the error.log get ...
2
votes
5answers
63 views
Remove path from find command output
I have a bash script for deploying code from a beta environment to a production environment but currently I have to add the list of files to a txt file manaully and sometime I miss some. Basically my ...
-3
votes
0answers
53 views
Enviroment variable empty
These two environment variables exist but this doesn't work. Any ideas?
echo $PWD > $VIRTUAL_ENV/.project
0
votes
0answers
35 views
php5-fpm: bash script to check config before restart
I write a script to create new vhost on Nginx. That script creates Ningx vhost config file, vhost user and dirs, php-fpm pool file.
At the end of the script, I would like to check if config is ok ...
1
vote
1answer
85 views
Grep and xargs: File name too log
I'm trying to delete all the files that do not start with __. This
ls | grep -v "__" | xargs -0 rm
Yields : File name too long. Any help?
EDIT:
ls | grep -v "__" | awk '{print("rm \42"$0"\42")}' ...
0
votes
0answers
32 views
scp in for loop for installing printers — connection refused
I could've sworn I was able to setup printers by:
setup first host with lpadmin
setup additional hosts with for loop: wherein
stop cups
copy printers.conf over
start cups
for host in ...
0
votes
1answer
25 views
rsync and bash command substitution
Trying to get a script to properly make use of variables. (The below examples are on the command line but I see the exact same behavior when inside a #!/bin/bash script.
$ FLAGS='--rsh="ssh -2"'
$ ...
3
votes
2answers
70 views
tar specific number of file
I have a directory with 27K files, I would like to tar them into multiple INDEPENDENT tar files, each will have 5000 files and the last one, will obviously have 2K (27K is not dividable by 5).
What ...
0
votes
2answers
34 views
Difference between default new file and new directory permissions
My umask is 0022
When I create directory using
mkdir mydir
the permissions I get are drwxr-xr-x
However when I create file
touch file
the permissions I get are -rw-r--r--
Why do directories ...
0
votes
2answers
43 views
CentOS: E-mail notification of failed ssh login attempts
Under CentOS, I need a script that will run every 10 minutes and e-mail me if there are any new failed ssh login attempts in /var/log/secure.
0
votes
0answers
58 views
ksh + print the last value from parameter ( as $_ in perl)
I need advice - how to print the same last value in ksh scripts without to print param argument
for example in perl last value is $_ , but we not have this option in ksh script
example - of ksh ...
0
votes
2answers
65 views
Why does “sudo su - X” require password, but “sudo -u X bash” doesn't?
I know "why" questions are dangerous :) I have sudo access on RHEL, and noticed this:
su -u fred su -
Password:
(I don't know fred's password).
sudo -u fred bash
[fred] $
Is there a way to not ...
0
votes
1answer
28 views
Bash SVN Post Commit Hook
I have a working post-commit hook bash script that syncronises a Trac instance with the latest revision for an SVN commit.
#!/bin/sh
TRAC="/var/trac/"
REPOS="$1"
REV="$2"
if [[ "$REPOS" = ...
3
votes
3answers
75 views
Prevent 'cd' remembering symbolic links traversed
Say you have directory ~/mytool that softlinks to /usr/local/mytool. Then cd mytool leaves your current directory as ~/mytool, which may cause scripts to behave incorrectly. Is there a way to avoid ...
7
votes
2answers
60 views
How to safeguard a shell script against running out of control?
I've recently had an experience of writing a shell script which crashed a server (and damaged a partition) by consuming all resources. It was hooked up to a cron job, and it seems it took longer to ...
-1
votes
0answers
17 views
Is CTRL+C incorrect to use to return to command line? [migrated]
When I'm using tail -f and I want to return to the shell, I always use CTRL+C. Or when I am typing a command and feel like aborting it and starting over, I simply CTRL+C to get back to an empty ...
0
votes
0answers
29 views
Amazon EC2 - If I have two servers in parallel, can I designate one to run a particular php script?
I'm going to try out amazon EC2 with a project I've been running on a server in my room. I have a php script that calls an executable.
<?php ... exec(someExecuteabe); ...?>
This executable ...
0
votes
1answer
42 views
linux + run script on other shell because script stuck - not return to linux prompt
In my Linux machine I have binary script (called transferNames.bin )
The problem is that when I run transferNames.bin with &
script stuck and not returns to Linux prompt “#”, even if I wait 1 day ...
0
votes
1answer
137 views
Why does the $PATH of an ssh remote command differ from that of an interactive shell?
I have a user that has made no modifications to the $PATH in any dot-files: it is exactly the system default setting. From a login shell:
$ ssh example.com
user@example.com:~$ cat /tmp/hello.hs
...
1
vote
2answers
97 views
find files with invalid predicates
So, I'm trying to get all files older than 40 days. (hence the -mtime -40), but can't find because some files have invalid predicates. (Need to find all files whether in current or descendant.
$ ...
0
votes
4answers
124 views
grep and tabs: no match
#cat sample
1 -1 2
2 2 2
2 1-1 3
I need to get all the lines that contains negative value, that is 1st line only. Values are tab-separated.
First I tried
# grep "\-1" sample
1 -1 2
2 ...
0
votes
1answer
49 views
SSH connection gives no prompt, unresponsive
I'm ssh'ing from my OSX laptop to an OSX server. It worked a couple of days ago. Now, when I try and connect, no text is output. My session (with -v option) looks like:
~ $ ssh myserver
...
...
1
vote
4answers
88 views
run script as user who has nologin shell
All I need to do is to run a specific script as a particual user who does have the nologin/false shell indicated in /etc/passwd.
I would run the script as root and this should run as another user.
...
0
votes
0answers
27 views
Shell script kill background process on quit [migrated]
I have a script like this:
#!/bin/sh
exec ./cmd1&
exec ./cmd2
If I kill the script only cmd2 is killed, cmd1 keeps running.
Is it possible that both processes quit automatically?
0
votes
1answer
101 views
Is there a way to redirect the output of pv command to a file?
I need to redirect the output of pv command to a file so i get read it's progress from another process. Or is it any other way i could do that?
1
vote
1answer
95 views
Sending mail from command line if body not empty
I'd like to write a simple script that alerts me if a log changes. For this I'm using grep to find the lines I'm interested in. Right now it works like this:
grep line /var/log/file | mail -s Log ...
2
votes
4answers
70 views
SSH not seeming to run in bash script called via web server
I have a simple shell script that:
Makes a directory on the remote machine.
Copies a .epub file to the remote machine's new directory.
Runs kindlegen to convert the .epub to a .mobi.
The remote ...
0
votes
1answer
52 views
Making ssh truly quiet
I'm half way through writing a nagios script and I've hit an annoyance with SSH.
According to the man page:
-q Quiet mode. Causes all warning and diagnostic messages to be
...
1
vote
2answers
158 views
Auto scaling AWS EC2 instnaces based on memory utilization
I am setting up auto scaling based on memory consumed by the particular instance. I went through the link posted at awsforums. I was able to set my metrics and using the bash script given and with the ...
0
votes
0answers
29 views
AWS_CLOUDWATCH_HOME is not set
Hi all I am trying to run a bash script which contains following instructions, I have added the bash script to the cron job, when I checked the log the log says, AWS_CLOUDWATCH_HOME is not set. I am ...
0
votes
4answers
58 views
“Command not found”-unable to run the bash script [closed]
Possible Duplicate:
My cron tasks report command not found
I am trying to run a bash script
#!/bin/bash
export AWS_CLOUDWATCH_URL=https://monitoring.amazonaws.com
# get ec2 instance id
...
1
vote
1answer
51 views
shell script + add inside the script PATH for standard output
Usually if we want to redirect script output to file we simply do
/etc/create_connection.sh > file.debug.txt
Or
/etc/create_connection.sh | tee –a file.debug.txt
But What I want is ...
2
votes
2answers
96 views
How to remove invalid characters from filenames?
I have files with invalid characters like these
009_-_�%86ndringshåndtering.html
It is a Æ where something have gone wrong in the filename.
Is there a way to just remove all invalid characters?
...
1
vote
1answer
26 views
Bash: checking uniqueness of filenames, and renaming or removing files
I'm working in CentOS with bash and I have files in a directory as follows:
16948.png
16948_thumb.png
16948-1_thumb.png
16949.png
16948_thumb.png
16949-1_thumb.png
16950-1.png
...
0
votes
0answers
7 views
How to pass bash variables (passwords) to IRSSI config file? [migrated]
I'm using IRSSI and I wonder how can I pass my IRC channel's passwords to the IRSSI config file (~/.irssi/config) without writing them directly in the file.
In Mutt I've an awk command that queries a ...
0
votes
2answers
100 views
How do I completely remove all references to couchdb from Ubuntu 11.10?
I have removed and purged couchdb from Ubuntu, but if I type "couchdb" in the shell at any point, the system still tries to start it up before crashing. I checked /usr/bin, and I still have references ...
2
votes
1answer
101 views
screen is not detached
I have a script and use the following command in it:
screen -dmS name bash -c "ls -1 > out"
What I am trying to achieve is to create a screen session, run a command and detach from it. The ...
5
votes
2answers
223 views
Who can delete a file?
I created a file, did chmod 000 to it and then changed the owner and group to root:root. I was still able to delete the file as the original creator of it (not root).
Who has permissions to delete a ...
