Questions about shell scripts, executable files that are interpreted by a shell (bash, zsh, etc.).

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163 views

Changing KDE's mouse theme and buttons settings from a shell script

I'm trying left handed mousing, and I want to be able to easily switch between right handed mode and left handed mode. There is a utility for Windows called SwapMouseButtons that allows to bind a key ...
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1answer
148 views

Bash script in RHEL to add/remove users in iptables [closed]

I will try to reword this as best as I can. I created a virtual machine to serve as a loadtest server with RHEL. If a user requested access to this server to run a loadtest, his workstation ip would ...
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1answer
2k views

Shell script to perform telnet session to ser2net

I have setup a xenserver (free) hosting a VM (Debian 7.5). On this xenserver I have attached a serial GSM modem. I have configured xen to run ser2net so I have a serial proxy available. This works ...
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0answers
61 views

How do I replace symlinks in a path with their target within a script? [closed]

I want to extract part of a file path up to a symlink, use readlink to find the path to the link target, and then replace the link name with the actual path. This has to be done within a script. For ...
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0answers
63 views

Why below script is not able to find and delete files [closed]

Why below find command does not find and delete files ? I am launching it like this ./script.sh 1 MYFOLDER days_period=$1 myuser=$(whoami) folder_prefix=$2 LOGS_DIR=~/$folder_prefix/logs if [ $# ...
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0answers
89 views

Cron job running but not establishing tunnel

I have a script which establishes a reverse tunnel on an endpoint HostB. It looks like this: cat tun.sh #!/usr/bin/env bash # Test code /usr/bin/ssh -V 1> /home/userA/bin/tun.stdout 2> ...
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1answer
48 views

check if genisoimage is succesful

I use a script to convert all VIDEO_TS directories to .ISO. How can I check if genisoimage is actually converting it instead of it failling and converting the next folder? After conversion I have a ...
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1answer
326 views

Using a Counter Loop for Environment Variable

I'm trying to write a code that moves files to a .junk directory using the built-in environment variables. My goal is that all a user would have to do is type sh junk filename1 filename2 filename3... ...
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0answers
77 views

Execute commands on TMUX Detach

Is it possible to execute commands on tmux detach? I usually have a rails console and server running in the tmux session, on detach is it possible to automatically end those? Thanks.
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0answers
77 views

Running a script after tty1 has loaded

I have been attempting to write a script to run dcled on start up, the program that runs this. I am using Debian Jessie with multiarch enabled. This is essentially a small file server. I am ...
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3answers
237 views

Executing bash shell scripts

I am reading an article on executing bash shell scripts. Method 1: Create a directory for your shell scripts and add the directory to the contents of the PATH variable, so that you can execute the ...
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0answers
74 views

Better approach to generating and adding contents to files

I have an input file like below. 1 First one 2 First two 3 First three 3 Second three I am generating 2 output files like below. #FILE1 1 First one 2 First two 3 First three #FILE2 1 ...
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0answers
750 views

shell script to check if process is running [closed]

I want to implement a shell script in Ubuntu that checks if process is running. If not, I want it to launch existing byobu (screen) session 1, and then run the command "mygateway" which will run the ...
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1answer
89 views

What is the Command to check the history of the command executed which should based on the user who accessed it [closed]

I am looking for the command or script to meet the following requirement. I wanted a history of all the users who connected to my machine and what commands they execute in there session and at which ...
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0answers
52 views

manipulate a Drush “internal” variable

I want to modify a variable (preferably in a Bash Script format) because my PHP environment requires a port number. To show a URL in Drush containing a token that logs you in as user 1 (without a ...
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1answer
405 views

Basic script in Angstrom Linux running on a Beaglebone Black

On my embedded system, I can toggle a user led with: echo > 1 sys/class/leds/beaglebone:green:usr2/value. Similarly, I can find the value of a GPIO (gpio60) (set to input), with more ...
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1answer
54 views

Automatically copy PDF.plugin to Chromium.app

I'm using Chromatic.app to update my Chromium.app recently. I'd like to use Chrome.app's PDF.plugin in Chromium.app. Therefore I need to copy PDF.plugin to the following directory: ...
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1answer
134 views

Shell script to list locked packages in FreeBSD

I'm trying to make a oneliner to be able to list all locked (forbidden to upgrade) packages in FreeBSD. Normally, you issue this command: pkg info -ak It outputs list of all packages in system ...
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1answer
33 views

Problematic quotations

#!/bin/ksh typeset FILE_SIZE1=$(stat -f '%z' test.txt); typeset -r BK_STATARGS="-f '%z'" typeset FILE_SIZE2=$(stat ${BK_STATARGS} test.txt); echo without arg var ${FILE_SIZE1} echo with arg var... ...
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2answers
364 views

Script to su -c into a screen is not working as intended

I'm working on a script that will allow me to load up a screen from a user via sudo and su -c. However, when I use it, it will just show the shell of the user: sudo su -c "script /dev/null; screen -r ...
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2answers
116 views

Merging two different files with conditions

I have two different files as shown below. Content of a.txt: HDR|1|||||||||| DTL|@||||||||||| TLR||||||||||||| HDR|1|||||||||||| ...
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0answers
46 views

List Mails by subject

I'm writing a script to send mails from a mailbox on a remote server and a script to check if the mails are received at another remote server. For this I have configured mutt. What I now need is to ...
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0answers
220 views

Shell script to backup VMware VM's, exporting each VM to a list then asking user intput

What I'm Trying To Accomplish: Get list of Virtual Machines ".vmx" file and place in variables Give the user and choice of which VM to backup Use "ovftool" to produce an export of the chosen VM to ...
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2answers
99 views

List files based on the date and time in the file name

I want to automate one task in UNIX and make one script. There is a directory in which everyday 2 files come and that files come anytime in between 10pm to 1am. The file name is something like ...
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1answer
471 views

Delete all jpg in a folder that are smaller than specific width/heigth [duplicate]

I have restored with photorec about 7.500 jpg's. I have moved them all in one folder. A big portion of them is thumbnails. But i can't just go on and delete lets say all of them that are smaller than ...
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0answers
130 views

Intercepting packets with bash

I'm wondering if it's possible to detect a packet that comes from certain IP and port(suppose IP 1.1.1.1 and port 80) and has some specific information on it (suppose "<h1>Web ...
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2answers
194 views

Why does this not work when the load average exceeds 1?

I have been testing this script and its behavior has been odd. The script should generate notifications whenever the load average exceeds a specified limit. Whenever I pass a CPU_LOAD_LMT >=60, no ...
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2answers
106 views

Split out data from a column

So at the moment I have some input email addresses and would like to separate the alias and the domain, then copy them to the end of the line. For example, from a line that has ...
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0answers
36 views

(standard_in) 1: parse error [duplicate]

This is my script: #!/bin/sh # 5. Write a Shell Program to Find the Area & Circumference of a Circle echo "Enter the Radius" read radius arear=`echo 3.14 \* $radius \* $radius |bc` circu=`echo 2 ...
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1answer
248 views

How do I start smbclient from a script in Linux?

I want to be able to quickly start smbclient to a specific directory without typing or copying it to the shell command line, but just sticking it in a script doesn't seem to work... #!/bin/csh ...
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0answers
42 views

FuncName(){} vs function FuncName() {} [duplicate]

There is two ways to define function in bash script. 1. function FuncName() { echo "$FUNCNAME" } 2. FuncName() { echo "$FUNCNAME" } So my questions is what's the different between in ...
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0answers
27 views

Script executed from cron doesn't display GUI notifications [duplicate]

The script below has the name notifyrssh.sh. 1: File=/home/vaios/Desktop/tempcron/liveusers.txt //OK 2: cd /home/vaios/Desktop/tempcron 3: ps -aux | grep sshd > ...
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0answers
87 views

how to list blocked connections events by the firewall?

So, I used firestarter that had logged blocked connections events with some useful details (but it is not being updated and I found somewhat unsafe as any moment we could click to deactivate the ...
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0answers
479 views

Log in to multiple remote servers and execute a script [duplicate]

I want to make a script that will remote login to the multiple servers listed in a txt file like 10.3.9.6 10.3.9.7 and all servers have same username and password. and want to capture the output of ...
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1answer
243 views

get free string genre id3-tag and not only genre number in bash script

I'd like to read the id3-genre tag within a bash script. I tried id3tool, eyeD3, etc -- but these tools just support the genre number. How to get the free string genre tag? My music players (Amarok, ...
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4answers
575 views

Solaris: Script for finding the physical device path of all installed fiber cards

I have a number of systems (with quite varying type, generation and architecture unfortunately). I need to create a list of fiber cards on these varying systems. I am able to use prtconf -v, and ...
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0answers
2k views

Using sshpass, return code (exit status) differs for reasons unknown using valid commands

There are a few things going on here but I think ultimately, either CLish or SSH is returning an exit code that is messing up my work flow. I'm attempting to connect to a remote machine (CLish shell) ...
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0answers
236 views

how to create a script to backup MySQL databases on separate files?

I need to create a script so to automate the backup process for my database server. Today there are 19 databases on the server and to prevent some schema is created and not contemplated by the script, ...
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0answers
1k views

rc.local not being executed when os boots up

I have a script that needs to be run when os boots up. I added it to /etc/rc.local. It was working fine for sometime but now rc.local does not load at boot time. When i checked the permissions on the ...
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1answer
1k views

Deleting Non-empty Directory with smbclient

How can I remove a non-empty directory with smbclient? I have tried the following: 1) rm Result: NT_STATUS_NO_SUCH_FILE listing [dir_path] 2) recurse;rm Result: No Error but also nothing ...
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2answers
581 views

Command/scripts to check the Reverse DNS Lookup time

I am working on a project in which one master communicates with numbers of slaves. For that it has to make connection with hosts in network. But sometimes it hangs. I think that the reason behind is ...
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2answers
100 views

how obtain directory files info

I have the need to get information about a specific directory, basically I need to know the correlation between small, medium and big files. I came up with this: for i in K M G; do printf $i du ...
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2answers
98 views

Reduce redundant logfile

I often have longer redundant log files, redundant in the sense that blocks of text repeat with minor changes. The length of the files makes it difficult to spot the actual information. I had the idea ...
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1answer
687 views

Linux + replace STRING/WORD in file according to rule

My target is to replace any word/string/Any characters in file with new word/string according to the following rules: If numeric characters on the left side of word/string then we not replace the ...
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1answer
1k views

connect to a remote server through ssh [duplicate]

Possible Duplicate: How do I execute a remote shell script over SSH and be prompted for passwords by commands that require it in that script? I want to connect to a remote server through ...
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0answers
88 views

How to make tcsh not insert whitespace in a command that spans multiple lines

Bash does not seem to insert whitespace but tcsh does. Tcsh bash-3.2.25$ tcsh -c 'echo $tcsh; echo A\ > B' 6.14.00 A B Bash bash-3.2.25$ bash -c 'echo A\ > B' AB How can I ask tcsh to not insert ...
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0answers
36 views

Redirect hard return to other terminal [duplicate]

Possible Duplicate: Construct a command by putting a string into a tty Suppose I've run a command in a terminal ( /dev/pts/1 ) and it starts to ask me for input ( "press y to confirm" ) and ...
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1answer
402 views

Can I get the backup option of cp and mv to work with directories?

--backup[=CONTROL] make a backup of each existing destination file The man page does say that it works on file. It doesn't seem to have any effect on directories. Is there anyway to make this ...
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2answers
2k views

regex find and replace 0x0D, 0x0A characters

I have a text file of a database dump with some line break characters (0x0A0x0D) in the middle of lines. I want to replace them with commas, but I can't do it simply, because those characters are the ...
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0answers
861 views

Which scripting language is most widespread in system administration tasks? [closed]

I am migrating to Linux and have some experience with the Mac OS X command line/bash. I'd like to automate system admin tasks via scripting, but I am unsure as which language is the most used in the ...