A script is a sequence of commands or instructions that are executed by an interpreter program rather than compiled into a standalone executable program.

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4
votes
2answers
668 views

List of script( location)s that get run automatically, and when?

Does anybody know (of a resource listing) what scripts are run automatically, and when, from the moment I startup the computer until it's shutdown again. I know several places where I can add scripts ...
9
votes
7answers
970 views

How to merge text of alphabetic lines with the numeric lines in shell?

I Have a file that has text like this: AAAA BBBB CCCC DDDD 1234 5678 9012 3456 EEEE 7890 etc... And i want to match up the Alphabetic lines with the Numeric lines so they are like this: ...
2
votes
1answer
1k views

LVM2: Obtaining lv and vg names from path (volume group name and logical volume name)

Let's assume we have lv path: lvpath=/dev/mapper/vg2-Music Than I split lvdisplay -c with cut: vgname="$(lvdisplay -c "$lvpath" | cut -d ':' -f 2 )" lvname="$(basename "$(lvdisplay -c "$lvpath" | ...
4
votes
4answers
6k views

Backup of LVM2 logical volume

I'd like to make backup on external drive of LVM2 logical volume in dd manner. Approach I consider is to make lv on extranl drive with identical size copy with dd (Please let me know if you see ...
1
vote
1answer
2k views

Run expect inside a bash script as another user

I am writing a bash script to install some small software I'm developing. That script is run with sudo (as root), but some of the commands that are executed by the script need (or should be) run with ...
0
votes
2answers
324 views

How to generate Zipf-like samples, by using scripting language

Is there any scripting language function (like in python or bash) that samples from a zipf-like distribution, for exponent 0<a<=1. PS: I am aware of existence of a numpy function that can ...
3
votes
1answer
864 views

Auto-login to internet script

For me to connect to internet I need to login first. Normally I do this manually (by opening my browser then at the first URL I enter I am redirected to the ISP's login page). However there is a Perl ...
4
votes
2answers
5k views

Sed: replacing digits

I am trying to write some install scripts for when I install/upgrade Ubuntu. I'm having trouble with fixing logrotate.d: /var/log/ufw.log { rotate 7 weekly missingok notifempty compress delaycompress ...
2
votes
3answers
643 views

dynamic display of a running process?

I am writing a script and acording to that when i run it certain info will be displayed on the output screen. for example say the constant data displayed is: my name is mukesh. i am 27 years old ...
0
votes
2answers
1k views

Need help to make rows into column with awk or sed

Recently, I look for scripts to take this: This; Is; First; Line; and make it like: This Is First Line
2
votes
1answer
1k views

Is there a shell utility for printing the contents of a plist? Preferably for a jailbroken iOS device?

I need a tool that prints the actual text in a plist file (plutil changes the format, cat prints gibberish, and there is no defaults command for iOS). It needs to be in a script, so text editors don't ...
6
votes
1answer
380 views

Is it possible to write portable service scripts to control a daemon?

I (or one of my colleagues) need to write one or more shell scripts to control the execution of a daemon. We need to be able to start the daemon, tell it to gracefully shut down, and force a shutdown. ...
5
votes
6answers
4k views

Linux script or program to shorten filenames

I haven't had much success in finding a Linux version of namemangler, which I need to rename 1000 of files so they are readable on Windows. Does anyone know of a Linux program that can do this? If ...
4
votes
3answers
354 views

Converting a history to a script?

Often times I've typed in a bunch of commands when I realize that I am going to keep typing them in and that I would really like a script. Now I understand that no matter how I save my history, I am ...
1
vote
1answer
72 views

Is S25mdadm start script priority correct?

(On Ubuntu 11.10 - configuration inherited from 10.10) Occasionally the boot process seems to suffer a race condition where a starting process misses some of the Raid-1 FSes, build via mdadm. ...
-3
votes
1answer
2k views

How to show the percentage progress of script execution in Unix?

Suppose you run some script such as a perl or tcl. For example, $ ./script.sh; ./script.pl; source script.tcl. It takes some time to get executed and return to prompt. How to display the percentage ...
0
votes
2answers
1k views

How to calculate in linux number of file inside nested directories?

I need to extract information how much files are in some directory tree: /.../testRoot/test1/test11/..../file1 /.../testRoot/test1/test11/file2 /.../testRoot/test1/test11/..../file3 ...
5
votes
1answer
2k views

Execute Script automatically at shutdown on Fedora 15/16

With fedora 15 or 16, I don't find the directory for execute a shell script automaticaly at shutdown...
3
votes
3answers
15k views

Pass command line arguments to bash script

I am new to bash script programming. I want to implement a bash script 'deploymLog', which accepts as input one string argument(name). [root@localhost Desktop]# ./deploymLog.sh name here I want to ...
-1
votes
2answers
277 views

Shell programming temp=$1 vs temp=1

What's the difference between temp=$1 and temp=1? Why do I need the dollar sign? For example: #!/bin/bash temp=$1 cell=$((($temp-32)*5/9)) echo $cell
0
votes
2answers
261 views

Autentification on SSH connection in OneLine [duplicate]

Possible Duplicate: Shell Script for logging into a ssh server I need to connect via SSH to a remote server, however I must do this with out interactive mode and with out use Public keys ...
1
vote
1answer
332 views

selective stdout , stderr and logging using the script command [duplicate]

Possible Duplicate: Show only stderr on screen but write both stdout and stderr to file stdout , stderr and logging using the script command cat test.sh: rm -v foo.tmp date pwd cat ...
1
vote
2answers
461 views

stdout , stderr and logging using the script command

I have remove.sh which contains: rm -v test.tmp And I have install.sh which contains: script remove.log -c './remove.sh' What can I do so that whether or not test.tmp exists, I don't see any rm ...
0
votes
1answer
976 views

Why isn't /etc/rc.local executed when I log in?

I'm trying to run a script at login, and this is the way I've found to do it. I'ved edited /etc/rc.local with a line such as bash /home/me/script.sh. I've made that script executable. It doesn't ...
1
vote
2answers
1k views

Issue with mv command in a script

This must be a very simple issue to solve, but I am stuck (not a UNIX pro). I need to move a gz to a target directory, but I get a No such file or directory. NOW=$(date +"%Y-%m-%d-%T") ...
3
votes
1answer
777 views

merging files and getting column values based on id field

bash-3.2$ cat sample.log sample.log.1 sample.log.2 ID COL1 COL2 COL4 1 col1 col2 col4 2 c1 c2 c4 3 co1 co2 co4 ID COL3 COL1 1 col3 col1 2 c3 c1 3 co3 co1 ID COL1 COL2 COL3 1 col1 ...
17
votes
5answers
27k views

File extensions for unix shell scripts

On wikipedia, the article for .sh says: For the .sh file extension type, see Bourne shell. How about other unix shells? I know that the shebang is used inside the file to indicate an ...
1
vote
2answers
336 views

$2 (field reference) in awk BEGIN is not working

In the following snippet, $2 in awk is returning empty. What am I doing wrong? I am trying to find the difference between MAX and MIN. #!/bin/ksh if [ $# -ne 1 ]; then echo "Usage: sh ...
3
votes
2answers
2k views

Invert results for “for in * do”-loops [duplicate]

Possible Duplicate: How do I reverse a for loop? Is there an easy way to invert a for in loop? For a script I want to process files in their reverse order. So instead of: for file in ...
3
votes
4answers
2k views

passing passwords to a script

I want to scp a file to a remote host, and from there, run a command on the file, and exit the remote session. If I write a usual script, call scp and then ssh, I am prompted to enter two passwords. ...
4
votes
1answer
464 views

Efficient way of comparing in awk

#!/bin/awk BEGIN { while(getline var < compareTo > 0) { orderIds[var]=var; } } { if(orderIds[$0] == "") { print $0; ...
0
votes
3answers
229 views

help with script; if status is this do that if not do something else

I need to write a script that checks on the status of something. If the status "Copying" then exit (or retry in 60 minutes if we want to get fancy.) If all there is nothing returned (based on my ...
14
votes
7answers
48k views

Execute remote commands, completely detaching from the ssh connection

I have 2 computers, localpc and remoteserver. I need localpc to execute some commands on remoteserver. One of the things it needs to do is start a backup script that runs for a number of hours. I ...
7
votes
2answers
1k views

sync files recursively between two folders where files are less than 24 hours old

I want to find all the files under a directory which are within 24 hours then rsync those files with another server. There are some old files that I do not want to transfer, however if those old ...
3
votes
1answer
784 views

Export a m3u playlist to a directory in order they appear in the playlist

There is a way to rsync a m3u playlist into a destination directory. How can I process the list and number the output so it orders the files to match the playlist order? For example the m3u: ...
5
votes
1answer
614 views

Giving a custom script root permissions

I have a backup drive that is Truecrypt Encrypted. I'd like to automnt this drive so I can automate backups when in the office. I am using Linux Mint 12 x64bit I wrote a script that runs successfully ...
3
votes
3answers
499 views

How to make svn look for if there is an update once a minute and if there is call some script?

I am developing a server app. I have a remote machine with Debian that I use for testing. Currently I update the server manually when each new svn version comes out. It is just a testing server and ...
6
votes
3answers
1k views

Keep running a script via ssh

ssh can use to run remote commands. ssh me@server.com 'long-script.sh' I run a long script that will take a lot of time, but I want to close my computer and keep running the script in the remote ...
1
vote
3answers
91 views

What are the proper tools to setup a remote compilation and running (something like ideone)?

I'm trying to achieve similar functionality in a server for community programming and I've drafted this to wrap up another take on oneide's functions: From a Perl CGI I build a script like this (not ...
3
votes
3answers
313 views

bash function to find a directory recursively

How can I write a bash-function that finds a specific parent directory. Here's my setup: /home/user/dev/project1/branch1/deeply/nested/module/structure The app-server used for devs is located at: ...
3
votes
3answers
218 views

Permissions for a submission script

I'm a TA for an introductory Python programming class (all work is done from the terminal), and I'm writing a project submission script. Ideally I want a directory setup like this: submissions/ ...
3
votes
3answers
2k views

How do I run a script n times at same time and how do I simulate a semaphore?

I have a text file, inside of this file is a number, and I have a script.sh in ksh. The script reads the file and gets the number, then increases the number by 1 and overwrites the new number in the ...
2
votes
3answers
5k views

How to delete the oldest directory in a given directory? [duplicate]

Possible Duplicate: Shell script for moving oldest files? I have a backup directory that stores x other directories that require backuping. I need something that will run before another ...
7
votes
2answers
3k views

List elements with spaces in zsh

I've been studying zsh scripting for all of 2 hours at this point and I've hit a wall. I want to go through a list of files that may have spaces in them. I'm open to completely different approaches ...
6
votes
4answers
9k views

How to totally fork a shell command that is using redirection

I've written quite a few shell scripts over the years (but I'm certainly not a sysadmin) and there's something that always caused me troubles: how can I fork a shell command immune to hangups in the ...
0
votes
2answers
319 views

Creating SSH Terminal Wrapper

I'm new to scripting, but somewhat familiar with Linux. I am actually using this on a Fedora16 build, with Gnome3 and gnome-terminal... fyi. I flip through all sorts of ssh terminals all day long ...
2
votes
2answers
527 views

Script that unpacks a initrd, allows editing of the preseed.cfg and the packs it to cpio and gzip again

I want to program a script that allows what is said in the title. So basically I gunzip the initrd, than unpack the cpio, open vi to allow editing, save, pack with cpio, and gzip again, so nothing ...
6
votes
1answer
3k views

How do I get the difference between two timestamps?

I am creating a simple backup script. I would like to have a message saying "You last backed up x days ago" on login. I can create a file when I do the backup "backup/.last_backup_timestamp" but what ...
1
vote
0answers
97 views

Perl Script to Display Pork Offline Message

I use pork 0.99.8.1 on openSuse 11.4 for my AIM account when I don't want to use irssi + bitlbee. The only problem I have encountered so far is that offline messages are not displayed. I just get a ...
1
vote
1answer
201 views

How to access user's fpath as opposed to system's fpath with a script?

test.zsh: #!/usr/bin/env zsh for f in ${fpath}; do echo ${f} done outputs: ...