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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0
votes
2answers
39 views

Output date is not proper when the script is run using cron

The below line should provide an output date which when run manually gives an proper output such as Fri Jul 17 01:42:07 2015. But when run using cron, it gives the epoch date i.e. Wed Dec 31 19:00:00 ...
1
vote
2answers
411 views

Script that only counts Established, TIME_WAIT, and Closed Wait connections using Netstat

I'm trying to make a script (using Perl, but it isn't necessary) that will only count the number of Established, Time_Wait, and Closed_Wait connections on a system and print them in terminal. So far I'...
-4
votes
2answers
81 views

Web Server Log Analyse

I have a web server log file I have to create a command-line pipeline to display the top ten most visited pages. I then have to embed it in a shell script. I'm completely new to Linux coding so how ...
4
votes
2answers
240 views

How to shutdown a list of servers, making sure the first one is off before shutting down the next?

I have a list of 17 servers in this format: 172.16.6.45 i-052463fs (test-mv1) 172.16.6.46 i-9e2263rf (test-mv2) I'd like a script that can ssh/login to each and every of these servers and ...
0
votes
1answer
260 views

Shell script for logrotating

I want to create a shell script for logrotating. following are my requirement. want to archive the log files to a particular directory lets(/usr/local/jboss-5.10..GA/server/archive/log) older than ...
1
vote
4answers
104 views

making an array of all subdirectories via the output of a command

My idea is to make a script which gives all subdirectories (in my case ˜/MUSIC but on the mac of my wife is it different –> artist/album). In a later fase I would like convert all .wav extensions to ...
1
vote
2answers
426 views

clickable (gui) Bash script?

Was just finishing some script containing a choice menu and was wondering if there's a tool out there that could be called by a script, provides a 1-click-choice-menu and returns the result back to ...
1
vote
3answers
90 views

Merge several files on the basis of the md5sum

I have a file data.txt, which was divided into fragments. I need to properly combine fragments of files so that the original file was created data.txt. I do not know what procedure does this, because ...
13
votes
2answers
784 views

Ask for a password in POSIX-compliant shell?

When I want to ask for a password in a bash script, I do that : read -s ...but when I run bash in POSIX mode, with sh, the option don't exists : $ read -s sh: 1: read: Illegal option -s How do I ...
0
votes
1answer
51 views

How to get a X line from file1 and Y line from file2 using shell command?

In file 1, 'Server restoration is complete now. It will be operational within few seconds. Please keep all the log file once the restoration is complete.' In file 2, 'Restoration was successfully ...
1
vote
1answer
101 views

Bash exit from subcommand [duplicate]

I have a script with the following code: command_that_could_fail || (echo "command failed"; exit 1) However, the exit seems to just be exiting from the sub-command formed by the second part of the ...
0
votes
2answers
182 views

Bash script arguments not being passed to function? [closed]

I'm trying to pass the arguments when invoking a bash script to a function defined in that script. In my head this is trivial but in practice seems more difficult. Script is: #!/bin/bash function ...
0
votes
2answers
1k views

How can I make flashing text in bash?

In the script bellow, how can I make the the word "end" from the output of the command " printf "\e[41mend==>\e[m $i "", flashing? #!/bin/bash in=path_to_my_folder for i in $(cat ${in}/file.txt); ...
1
vote
0answers
102 views

Systemd script not echoing

I've recently setup Fedora 22 onto a machine and it's using the systemd filesystem. I've been reading up on it and now I need to create a systemd start up script for postgresql For testing I created ...
-1
votes
2answers
195 views

How do I take a prompt response and send it to a text file?

I'm new to shell scripting and I need help I want to ask the user what is their ORACLE_SID, ORACLE_HOME, and then send the output in a file. I want to create a param file that has ORACLE_HOME= ...
5
votes
2answers
1k views

Systemd postgresql start script

I'm in the process of installing postgresql onto a second server Previously I installed postgresql and then used the supplied script ./contrib/start-scripts/linux Placed into the correct dir # cp ...
4
votes
1answer
117 views

Where to save temporary files for shell scripts

I have a script to toggle my screen backlight (mapped to a keyboard shortcut), and I want to save the brightness level so I can restore it when pressing the keyboard shortcut again. Is there a ...
2
votes
1answer
48 views

make sure all lines in a textfiles don't have the same value

I have a text file that contain multiple lines. Some of the lines have contain same value. What I want is to make sure that all of the lines do not have duplicates or "triplicates". Sample: 2014-11-...
2
votes
5answers
1k views

How to add a password to a BASH script

I want to create a script to run the following BASH command: mysqldump -u [username] -p [db_name] > [path to backup file] Which results in a backup file. When running this in BASH, it prompts ...
0
votes
0answers
134 views

Start a process from (noninteractive) shell script (cgi) and keep it running when script ends

I want a cgi script to start a process which stays alive after the cgi script exits. I tried: #!/bin/bash nohup process-to-keep-running & That works fine, if I run the script from an ...
1
vote
2answers
51 views

shell script for chmod file name but only on new files since last run of the script

i have a directory where new files are uploaded and receive numeric filename as they are uploaded. the file name is numbers that go up. i need to change permissions for the file but only on new files ...
1
vote
1answer
83 views

LXDE hotkey to start app or switch to it if already running

I got used to Win+(1..9) hotkeys in windows 7+, and would like to implement something like this in LXDE. So, I need to define a hotkey that will: launch defined application if it is not launched ...
4
votes
2answers
321 views

Stop writing to a capture file after it reaches a specific size

I'd like to monitor my network traffic of an specific interface to file. Then I would like to stop the interface if the traffic counts over 60mb total. Is there a possible way to do that?
2
votes
0answers
44 views

How to dynamically control the audio volume based on current decibels

Since the Internet videos have different sound volume levels I am wondering is there a way to dynamically decrease the audio volume if it's above certain decibels to a normal value. Could someone ...
3
votes
1answer
86 views

How to programatically control X11 forwarded apps?

I'd like to set-up X11 Forwarding to run remote X applications on the server and X11 client can handle the UX interaction. However I would like to configure the X11 client or fake it to actual do the ...
0
votes
1answer
176 views

How to copy files to the timestamp generated directory?

Hello I am trying to copy all files from Documents directory to the backup directory that has a timestamp. So I have created a directory called bk$( the time stamp of the directory) and I am trying to ...
2
votes
1answer
186 views

Dynamic Variable in KornShell Script

This KornShell Script (ksh): envir=Dev eval "${envir}foo=bar" echo "$Devfoo" Output: bar But I will not know what value is assigned to envir variable. So I want to do something like this where ...
0
votes
0answers
329 views

Bash, find and delete old files

Write script for backup files and delete old: #!/bin/sh BACKUPDIR=/var/backups/files ROTATE=1 mkdir -p $BACKUPDIR CURRENT="$BACKUPDIR/`date +%Y-%m-%d`-files.tar.gz" cd /var/ && tar czf $...
1
vote
1answer
118 views

Can I execute a script before every login

I am planning to have a program that will need to connect to a server. I'd like to be able to send a encrypted password to my server. The thing is, I need my decrypting script to be executed (...
2
votes
1answer
1k views

How to create gcov files for a project in a different dir?

I want to analyze code coverage datas. I want to create gcov files from OpenSSL (and from other projects), but I can only create them in the same directory of the project, and only for the files in ...
2
votes
3answers
84 views

Delete Entries in File if the Same Entry Exists in a Master File

I have a JSON master config file whose value may be overwritten by a specific account's config file (also in JSON). The Master file has this structure: { "section1Configs": { "setting01": ...
-1
votes
2answers
58 views

Find file, Edit text within files [closed]

I am trying to find a file and then edit the text within these files. This is what I have so far, but sadly I'm not that well versed. Help please? grep -rl "wrongtext" ~/Library/Calendars /Users/...
8
votes
7answers
2k views

How can I make a script to count up by fives?

I was trying to make a very simple bash script to list all of the multiples of five between 375 and 3500 (375, 380, 385...). One thing that I tried and didn't work is: for i in {375..3500} do ...
2
votes
2answers
755 views

Merge two-columns files into one file

I have a bunch of files (file1, file2,file3, ...) with two columns. For example, file1 looks like: 0.12 0 0.32 0 0.42 1 0.23 0 and file2 looks like: 0.34 1 0.55 1 0.31 1 0.99 0 I wonder how to ...
6
votes
4answers
1k views

Add path to $PATH if not already in $PATH [duplicate]

I need to add a path in a bash script, but it may be executed several times: export PATH=${OPENSHIFT_HOMEDIR}/app-root/runtime/bin/:${PATH} I don't want that path to be added over and over. How can ...
0
votes
1answer
279 views

Problem with inotify-wait as daemon

I have been running inotify-wait on my ftp server in byobu to monitor a folder, move data, and send email notifications for a few months without problems. Since I started this I have added 3 more ...
0
votes
1answer
816 views

How to execute shell commands in a loop from within a bash script?

I am new to bash and need help badly. I want to write a script which will run on my android phone & perform the following things: echo "1" > /sys/kernel/mm/ksm/run wait for 2 minutes: then ...
1
vote
2answers
47 views

Else not Executing

In my script, I transform data to a more readable format. But I am having an issue. If no arguments are typed, just the script, I want it to come back "Please enter a filename" which I have done. But ...
0
votes
1answer
55 views

Formatting VGA info to conky

I'm trying get conky working on my system, and I'm stuck on how to format a specific shell variable to display my VGA. From shell I get my VGA using: lspci | grep VGA The output: 01:00.0 VGA ...
2
votes
1answer
50 views

How to create a zip of directories -mtime -150

I want to zip the directories, sub directories, files in main and sub directories from today till 150 days ago. I only consider the date of the directories where I am running the command, no matter ...
-1
votes
1answer
191 views

How to edit a file from a script using a loop instead of find and replace with sed? [duplicate]

Here is an example of what I am trying to do: #!/bin/bash Update=$1 if [$Update == Value] then NewValue= $Update vi %s/Value/$NewValue/g > Updatedfile fi exit 0 Is there a way to ...
0
votes
2answers
91 views

Cannot login after making a service autorun at startup [Debian]

On a normal startup after booting the login prompt appears from where I would login. But after making motion autostart I am unable to login or open GUI because motion is using the command line to ...
-1
votes
2answers
324 views

Shell append string after last match

I would like to insert a string after the last match, example: String to insert after last instance of banana: Orange Input Apple Banana Apple Banana Output Apple Banana Apple Banana Orange I ...
0
votes
1answer
57 views

Auto Download & Untar Script

Looking to write a script for my Linux Server so look for a specific folder name, then wget a file, and untar. Where would I start with this? I know that it has to be written in bash, but I'm very ...
4
votes
3answers
807 views

Bash script: do something one time inside a loop then stop, but continue looping

I have a Bash script that checks my laptop battery and sends me an Android notification (via shuttle, a Bash script I wrote that serves as a cli interface for the Pushbullet API). It works nicely, but ...
-1
votes
1answer
45 views

Whats wrong with the 2nd script?

I am new to linux and scripting. I have some concerns regarding the script below which creates folder per line from file. Folder.list is located in /scripts/ . 1st script works smoothly but the 2nd ...
3
votes
0answers
27 views

How can I tell whether or not I am in a text area?

I am running a Window Manager and am soon getting a Thinkpad x220 tablet. I was hoping to make the tablet a little more functional by having an on-screen keyboard, and I have set it up so I can show/...
1
vote
2answers
1k views

How to find out last run time of shell script?

I am trying to find out at what time the shell script ran last time within the shell script. I tried: ls -laru ls -lart but all these commands give me the last modified time and last accessed ...
0
votes
4answers
90 views

Copying Only Directories With Files

I am trying to copy files and the directory it is in to another location. I can find the path like this: find ~/dim_import/* -type f ! -name xdir | cut -d '/' -f 5-10 which outputs general/header....
1
vote
1answer
139 views

sh - Using Arguments in .profile functions

I want to use an argument in the function I created in my .profile file. I want to ask for input if no argument is given, otherwise set a variable to $1. When I check $1 to see if it is empty, I ...