A shell script is a script written for the shell, or command line interpreter, of an operating system.

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Running powershell scripts by drag-n-drop file or folder on it

Is there any way of running a powershell script by drag-n-dropping a file on it (just like you would drag-n-drop a file on a .exe file)? It would be also nice to be able to do the same thing with ...
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1answer
201 views

xargs in shell script

I want to group jpeg images by odd number and even number. So I did like following: $ mkdir odd $ mkdir even $ find . -regextype posix-egrep -regex ".*[13579].jpg$" -print0 | xargs -i -0 mv {} odd/ $ ...
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3answers
55 views

Write a command to switch to specific directories

I have some directories that I have to go to a lot more often than others, like for music, work, programming, etc. So I want to have exclusive commands, say "gotomusic" or "gotodropbox" to go to these ...
2
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150 views

What this command :(){ :|: & };: does? [duplicate]

What does this shell command do in Linux :(){ :|: & };: How can it be used in Denial of Service attacks?
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Shell Script Error using Cygwin

I got this error after execute shell script as below. $ ./script_test.sh ./script_test.sh: line 3: syntax error near unexpected token `$'do\r'' '/script_test.sh: line 3: `for ((j=0; j<"$N"; j++)) ...
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218 views

windows 7 batch file for swapping filenames randomly

I need to write a batch file that goes into a folder and randomly swaps (renames) all the filenames. This folder has about 1000 files. So it is acceptable if there are few misses.
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3k views

How to pad strings with spaces in a Unix shell script?

I have data that looks like this: 01234567 09876544 12345676 34576980 I need to pad this with 11 spaces i.e. my output should look like this: ' 01234567' ' 09876544' ' ...
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2answers
80 views

How do I parse metacharacters for function input in bash?

I wrote a function in bash which gets * as input and therefore sould list all files in that particualar dircectory. but doesn't. Here is what i wrote: # a function that mass deletes files in a ...
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212 views

Linux Log off Script on Pardus

I'm trying to run a script when user logged out. My linux distribution is Pardus that uses KDE. How can I do this? I've heard about "/.bash_logout" but I couldn't implement that. Where should I ...
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1answer
292 views

run a shell script on terminal if terminal is idle for few minutes in linux

i can get terminal idle time by w command as follows $ w 14:37:58 up 2 days, 20:16, 2 users, load average: 0.12, 0.16, 0.14 USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT ...
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1answer
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Exited with code: 1 Error with launchd

I am trying to run a job with launchd which runs a shell script that creates a zip file I then backup. I am receiving the error: 6/26/13 5:04:37.992 PM com.apple.launchd.peruser.501[162]: ...
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97 views

UNIX-Shell Scripting

While executing the below script, I'm getting an error: Syntax error at line 1 : `(' is not expected. sudo su - user1 -c "cd $HOME ; tar -cvf $HOME/mine.tar `cat /tmp/$LOGNAME/List` " where List ...
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2answers
507 views

Trying to find any home directory that is writable by anyone

I am trying to locate any user home directories and their files that are writable by anyone. I wrote this: find /home -type d -perm -200 | grep . || echo no world-writable directories here ...
0
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1answer
151 views

How to launch X11 program at start up and have it execute custom scripts when the X session is closed?

I need to run a script at the end of each user session, and this seems like the best way to do it. I have no experience making X11 programs, so how exactly do I go about doing this?
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480 views

run a bash script at logoff, shutdown, and restart on Linux

I need to run a bash script each time a Debian-esque thick client logs off, shuts down, or restarts. Outside of that, it can be any distro, desktop environment, window manager, or otherwise ...
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2answers
246 views

How to merge ls commands colors with the output of find or du?

I have a simple alias to list the size of files&folders in cwd. ( including dotfiles in this case , ignoring zero sizes ) du -sh .[!.]* * | sort -hr | grep -v '^0' which can be achieved ...
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2answers
65 views

How to run my script on VM

I have script on my Virtual machine that i would like to run without []$ ./myscript [studentuser@CentosStudentSvr ~]$ myscript -bash: iduser: command not found otherwise it errors: -bash: iduser: ...
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1answer
329 views

Capturing output of .bat script in VMWare Fusion 'runProgramInGuest'

I've recently started a new job where we run virtualized copies of Windows inside VMWare Fusion (Mac OSX is the host). Among other things, we have a few utility .bat files that get run regularly. I'd ...
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1answer
423 views

Delete old log files in AIX

I am trying write a script to delete old log files in \var\log\applog\nmon on my AIX system. We usually get alerts that the file system is almost full and at the moment delete old files by hand. So ...
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1answer
3k views

Unzip file from source to destination within user directory across multiple versions of windows

I have a source zip file which is located in a user's "My Documents" directory. It is guaranteed to always be there. I'm looking for a way to create a batch or script which will let me unzip that file ...
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2answers
112 views

Creating unique template HTML files for all MP4 files in a directory

I've prepared a number of video files that will each have their own HTML page. (I'm making a series of lecture videos and trying to keep things simple since I'm a chemist, not a coder.) I'd like ...
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1answer
214 views

Changing the case of the Nth character of a filename using Bash?

I have a folder of files and I want to change the case of one of their characters at the 5th position. From this: ABC-xyz DEF-xyz GHI-xys To this: ABC-Xyz DEF-Xyz GHI-Xys You'll notice the X ...
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1answer
137 views

A way to paste predefined list of text in bash script to browser?

I am looking for a way in bash to paste a few lines (which will be selected in a loop) to a form on a webpage at a certain location (i.e to a specific field on a page). Is this possible? Hope I've ...
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1answer
3k views

Get USB key manufacturer serial number

I am looking for a batch command to retrieve an USB key manufacturer serial number. I need a command that works in both Windows XP and Windows Seven. This is for a hardware follow-up. I have a script ...
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1answer
45 views

Queue commands to last subshel even if one of them launches new shell

I want to automate something writing simple script launching consecutively few scripts one after another. And then setting some aliases at the top shell. Problem: few of these commands launch new ...
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3answers
130 views

SSH and SCP giving error

I am doing the same steps (Perform SSH and SCP Without Entering Password on openSSH). But it keep asking password prompt while scp or 'ssh -l' command run. Same steps i did few days back, it was ...
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2answers
280 views

Auto backup photos to network drive

My wife's ultrabook is getting full of pictures. I have a NAS that all our pictures are on. What I want to do is store EVERY picture on the NAS (easy) but keep all the photos from the last 12 months ...
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1answer
261 views

Merging two folders with the same or different names

How can I merge two folders with the same or different names with subdirectories, using shell script or terminal. Also, if there is a file with the same name, then it should skip.
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1answer
230 views

Can you switch into Single User Mode Without Rebooting?

Is it possible to switch into single user mode WITHOUT rebooting and holding CMD+S. For example, can I write a shell script to switch into single user mode? If so, for which operating systems?
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2answers
138 views

How to rename to existing folder

i am not able to rename the folder name. i tried these ways. please correct me, [testuser@backupdev1-lnx backup]$ cd /opt/backup/ [testuser@backupdev1-lnx backup]$ ls -l total 8 drwxrwxr-x 2 ...
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1answer
29 views

How to perform zipped mirroring on Windows?

My source is a directory hierarchy. I need to auto-copy the files in the source to a destination directory, but to have each file individually zipped inside the destination sub-directories. ...
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1answer
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Launching a Shell Script via .desktop in Raspbian Wheezy

I am trying to launch OMXplayer and play a sequence of videos on loop on a RaspberryPi running Raspbian Wheezy. I have got a working shell script which launches and plays the videos courtesy of ...
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1answer
212 views

bad interpreter shell script

Hi I'm trying to write a shell script for plotting with gnuplot however I keep running into the error: bash: ./plot.sh: usr/bin/gnuplot: bad interpreter: No such file or directory I have checked the ...
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2answers
111 views

Averaging subsets of images with imagemagick, iteratively

I have a hundred images and I want to average them 5 at a time. The imagemagick command for the first 5 is: convert -background transparent %d.jpg[1-5] -average output1.jpg The imagemagick ...
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1answer
48 views

Script to copy files to x locations of rules are met

I would like to create an automator script that will ask me for a specified folder, and on selection I would like it to search for the following and do x tasks if files is .mkv and does not contain ...
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3answers
116 views

Linux tool to autodownload and build from SourceForge?

Has anyone made anything (even just a script) to automatically download, untar, and make projects off of SourceForge in Linux? How could I do that? I am using Ubuntu 12.10, specifically.
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4answers
103 views

Is there a cross OS (win/mac) scripting languagee? [closed]

I use Autohotkey for all my Windows scripting, but would like to use something that could apply to a Mac as well. Without having to write it in multiple languages. And having it compatible with ...
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2answers
600 views

How to run apache server if it not already running

I wonder if it is possible to check whether or not apache2 is running. If it is not running I want to execute it using shellscript Currently I have added a function which I named run_apache which ...
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0answers
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Loop through folder with higher space usage in shell? [duplicate]

I would like to create an script where give me a report of which folders have the higher usage space and keep doing that until there's no folder anymore. Today I do this manually, with: sudo du -h ...
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4answers
538 views

parse log file with heavy output

I'd like to monitor my vsftpd logs and pull information from the logs to process the files that have been uploaded. Up till now everything was great and worked fine: tail -n0 -F /var/log/vsftpd.log | ...
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1answer
214 views

parse vsftpd log with shell script

I try to parse this line with vsftpd: Sun Apr 7 07:23:33 2013 [pid 23590] [cam02430] OK UPLOAD: Client "206.132.183.209", "/20130407/07/20130407_072324D.avi", 496846 bytes, 383.38Kbyte/sec with: ...
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2answers
83 views

multiple conditionals in shell script

This is driving me insane. There are many posts on this but nothing is working for me. I want to check if a file is not an avi or mpg then I want to exit. Here is a simple example: #!/bin/sh ...
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2answers
365 views

Exclude files in a for loop

I want to delete the /lib directory inside apk files. I managed to do this with: for DIR in ~/ABC ~/ABD do cd $DIR for APK in * do if test -f "$APK" then zip -d $APK ...
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1answer
841 views

Comparing zip files

We need to compare the contents in each of 2 .zip files we have. Each .zip file has of different file extensions. Each .zip file also contains another .zip file and a couple of subdirectories. We ...
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1answer
158 views

how to compare negative floating points in bash

We tested our script and it fails on negative floating points comparison in bash. What are we doing wrong ? $F1=10000000000 $F2=300 FLP=$(bc <<< "scale=5; ($F2 - $F1)/$F2 * 100") if [ $FLP ...
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1answer
257 views

Shell script detecting errors from command called by script

I am calling applications from my shell script, which performs a number of important steps in sequence, one step being below: for database in $( echo 'show databases;' | mysql ...
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2answers
148 views

*nix shellscript: Get disk usage on multiple OSs

I am trying to get the usage-percentage for a given disk in a system. The program I have to write will be a bash shell script. The script has to work on Debian, Arch, and Mac OS X. My current ...
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2answers
68 views

Keep a fixed number of files in a directory

We have a Linux directory where files and directories are being added to it daily. We like to control this list of files and subdirectories in the directory by fixing the list to 50 most recent files ...
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1answer
3k views

How to find all zero byte files in directory

How to find all zero bytes files in directory and even in subdirectories i done this #!/bin/bash lns=`vdir -R *.* $dir| awk '{print $8"\t"$5}'` temp="" for file in $lns do if test $file = "0" then ...
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1answer
2k views

Calculate % difference and file sizes between two files

We have two zip files and would like to compare them. We're also interested in calculating the percentage difference between them and the file size. Is there a tool that can do this quickly?