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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18 views

find lastly zipped file in a directory which has so many zip files [duplicate]

I am trying to make a script in that i need to execute a command which can give me the lastly zipped logfile(ex:my log file is going to be zipped toady so i need to place this file in script.likewise ...
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1answer
29 views

issue while running bash script remotely [on hold]

I created below script to take some backup.When i run it locally or by copying it to remote machine it is running fine. But when i ran it like: ssh asuser@isp2876 "bash -s" -- < AdvanceLog.sh ...
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0answers
51 views

service doesn't work

Background I am using this script in order to make my script running as service. I am using Linux Mint 17.3 Rosa. The problem Sometimes the start/stop works sometimes not. Sometimes, I have to ...
1
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1answer
39 views

KSH script having trouble reading in variables line by line

For starters, I'm not the most advanced scripter. I was asked to create a script that would search through a directory for print files older than 14 days and move them to an archive directory. There ...
0
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1answer
25 views

update lines in a file

I have a file,where it has some fields.For example, var One = "fcb"; var Two = "abc"; How can I update/replace these lines using a script? I want to be able to do something like : echo -n "...
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2answers
20 views

Merge PDF document but with conditions

I make bus timetable booklets for drivers every day, and I have 4 PDF files: Special Instruction Sheet (Every day different) Bus daily timetable (which is always different) Bus Assistant daily ...
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2answers
31 views

Best way to ensure that a script is run once a period?

I need a certain script to run once a month (others viewing this question may need it to be run once a day/week/year/5-day, etc). I know I can use cron to do so with: 0 0 1 * * ./script.sh But what ...
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0answers
37 views

Curl gets 200 OK, while browser shows 503

I have a bash script: code=$(curl -I -s -S --resolve $host:$port:$ip $link | grep 'HTTP/1.' | awk '{ print $2 }') if [ $code -eq 502 -o $code -eq 503 -o $code -eq 504 ]; then /usr/sbin/service ...
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4answers
57 views

How can I run a command periodically and indefinitely till it's turned off?

I want to run a command every several minutes until I turn it off. After some searching, I found lots of ways of doing the first half (running a command periodically and indefinitely), what about I ...
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2answers
34 views

SFTP to upload files at cronjob

I want to use SFTP to upload files from A to B. path for A: /tmp/A path for B: /tmp/B server B has own username & password. my cronjob will run every 10 mins to check whether there are new files ...
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0answers
16 views

How to run a function for a specific received packet? [duplicate]

I am doing an experiment for my master thesis. I want to run a function (e.g. multiply two numbers) when a specific packet is received (e.g. a packet with destination TCP port 6666). For example, I ...
3
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1answer
50 views

tmux script to launch several commands

How can I write the following in a bash script? tmux # Start tmux session. compass watch /path/to/project1/compass/ # Run the first process. Ctrl + B, " # Split the pane. compass watch /path/to/...
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2answers
56 views

How to add users from data in a text file

I am a beginner in linux. I have a question about creating multiple users in linux, but I need a program to work on it. There is a new users txt file, the content is following: adams:5000:Adams, John ...
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2answers
29 views

Passing variables to script [duplicate]

What is the difference between: ./script.sh "$VARIABLE" and ./script.sh ${VARIABLE} Is there any?
3
votes
2answers
60 views

Can you tell if a file has been renamed?

Many tools out there for syncing files aren't quite right for syncing you're home directory. Because of this, and to learn Ruby, I've been working on my own sync tool. An issue I've encountered, ...
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2answers
38 views

cat doesn't join my files when I run inside script

I'm doing a restore backups script, and when I try to join files which are splitted, cat prints that error: cat: fullbackup_mrbsNuevo_15_6_2016.tar.gz.*: No such file or directory The line that ...
1
vote
1answer
47 views

How to compress all files in folder and erase the untared versions via command line?

I have a backup disk containing uncompressed versions of my files that I would like to compress to save space on this disk. The disk (containing files to compress) is full (about 3TB with 17GB free). ...
0
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1answer
198 views

Echo semicolon in bash

I am trying to write to a file the following string: 1;2;3;4. The semicolons create problems. I have been able to figure out the following ecamotage to do it: variable='1;2;3;4' echo "${variable//;/\...
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1answer
269 views

Why is my loop not continuing properly in my rock paper scissors game?

I'm making a bo3 rock paper scissors game. So far I've gotten it to work under every condition except ties. When a tie happens, it's meant to 'remake' that game by just subtracting 1 from I. It doesn'...
0
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1answer
156 views

What's wrong with my elif statements in this rock paper scissors game I'm making [closed]

making a rock paper scissors game to learn better bash. For some reason it's not liking my elif statements and I can't figure out why. Also if there are any better ways of doing this let me know, ...
0
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0answers
25 views

Why is this udev remove rule not working? [duplicate]

Hate to ask this sort of question, but... Device info: udevadm monitor --env UDEV [3048.530438] remove /devices/pci0000:00/0000:00:1d.0/usb2/2-1/2-1.6/2-1.6.3 (usb) ACTION=remove BUSNUM=002 ...
0
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1answer
50 views

how to replace special characters in large text file in shell scripting [closed]

I have using for below command but I have replaced special characters some characters is replaced some one not replaced that is my equation. sed "s/\,/\&\#44\;/g" VENKAT.TXT|sed "s/Décor/D\&...
2
votes
3answers
42 views

rename(1)-like script in Perl, but for copying files?

So there's this rename(1) Perl thing. It suits my task precisely, except that I need it to basically cp files instead of mv. How to achieve that? I have quite a few rules of renaming, all expressed ...
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2answers
63 views

Wait until a process comes back from sleep

script.sh is run by run.sh N times in parallel. For N=1, the script.sh process is set to sleep 30-45 seconds before it actually starts. How can I order ALL script.sh instances for N>1 not to start ...
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1answer
29 views

How to record numbers of array elements based on selection comparision criteria

I have many files which has many 2x2 arrays. In the present example I show only one file (file1) Input file(file1): 1: 6.1703 541.631 46.0391 2: 6.1930 537.446 45.9239 3: 6.1931 177.171 288.579 ...
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0answers
22 views

Execute custom script when wireless NIC connects to SSID

I have pieced together two scripts that will serve to execute a custom script when my wireless NIC connects to an SSID. Firstly, I will add the following (notice the post-up section): auto eth0 ...
1
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2answers
69 views

Copy files that are created today without FIND command and SFTP to another server

I have a directory with 'n' number of files in it. I am trying to write a shell script which will list only the files created on the particular day the script is running, and will use sftp to move the ...
0
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1answer
37 views

find: missing argument to '-exec'

this is my first post, as I am completely new to the programming world. Basically I'm taking a UNIX class and I have an assignment asking me to check the size of regular files in my home directory for ...
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1answer
28 views

Unix shell scripting select and case statement

1) i want to write unix script which is like this echo "Do u want to check application logs ???" select opt in Yes No do case $opt in "Yes") commmands ;; "No") break ...
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votes
1answer
43 views

Write shell script for logging in servers and run command after logging in

I have wrote a shell script for logging into servers and run few commands to start and stop processes running on it, So I tried below code, but it is showing error, please help me with the script. ...
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35 views

wgetting links that are written in script form - not plain html

I use wget to download all the html pages in an online gallery - in order to grab all the links to the full size images as follows: wget --wait=3 --user-agent=Webtography --no-cookies --timestamping -...
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0answers
39 views

File edition after glob function through python

I wanted to find every instances of a file under different directories and search for value 0 in each of those files and replace them with 500. Please find the code below #!/usr/bin/python import ...
1
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1answer
36 views

Convert GPS coordinates with bash script

I need to convert to a specific format some gps coordinates which are the output of the exif information of a picture. This is the typical output: exif:GPSLatitude: 10/1, 10/1, 10/1 exif:...
0
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1answer
34 views

Read file upon .bashrc startup, based on date

I'd like to put a script in my startup that reads a line from a text file, and echoes this to the screen. However, I'd like a different line from the file based on what day of the month it is. Thus ...
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0answers
19 views

Define root prompt and non root prompt in one rc file

I'm writing a restore script for my dotfiles and I find it really irritating that I have to have two .tcshrc for both root and user where they only differ by one line. Is there a way of defining the ...
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3answers
70 views

If, Then, Else Scripting

I have a log file that contains several lines, each with an IP, username, and URL. I need to create something that will take each IP in the line and, if starting with a 10 will append the word "ON" to ...
1
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2answers
72 views

how to edit next line after matching pattern and append the line if doesn't exist

I am looking for changing a file content which is repeated twice with that replacement I want to add extra line to second content in the same file Example file User YOURNAME IdentityFile ~/.ssh/...
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0answers
15 views

Extract CSV gz file and convert to JSON

Is it possible to extract a CSV gz file stored on an external URL's public_html folder and then convert that data into JSON and then save it as .json in one command?
2
votes
1answer
26 views

Find and list duplicate directories

I have directory that has a number of sub-directories and would like to find any duplicates. The folder structure looks something like this: └── Top_Dir └── Level_1_Dir ├── standard_cat ...
1
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1answer
54 views

uniquely remove unwanted lines in multiple files

I need to remove unnecessary data from multiple output files part of each file looks like this # BLASTN 2.3.0+ # Query: M03117:99:000000000-ALL7G:1:1101:18697:4431_2:N:0:196 # Database: /home/alex/...
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votes
2answers
37 views

Data Manupulation required your help

I have a data as mentioned below. host_name Server1.domain.com contacts DL - Desktop contact_groups ravi, raj, rahim host_name Server2.domain.com contact_groups DL-Server host_name Server3....
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1answer
39 views

Using Grep In For Loop

File1 contains: 421 RP-001 421 RP-002 421 RP-003 550 SC-001 550 SC-002 550 SC-003 550 SC-004 550 DY-001 550 DY-002 550 DY-001 550 OU-001 550 OU-002 Script: #!/bin/bash Elogs=/home/elogs.txt ...
0
votes
1answer
38 views

retrieve numbers with 0 for a single int value

In my script, I need to get a 0 for numbers <=9. When the user types any number, I add 5 to it and if the result is less than 9, I need to print a 0 in order to have a 2-digit number (like 07,08,09 ...
2
votes
1answer
25 views

Adding multiple comments to debchange in “batch mode”?

I'm trying to automate a deb package builder for a git repository, as part of which I want to get a bunch of commit comments (since the last package release) and put them into multiple comments in ...
4
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4answers
44 views

Running multiple programs in the background and checking their return value

suppose I want to run a few (say, three) programs at once, like this program1 & program2 & program3 & if I want to know their pid's, I think the best way is to store them, like this ...
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0answers
30 views

Significance of shell script with XML

I have recently joined anew project and experienced the structure where Shell scripts are usually directed to a target which is set in XML and that XML containing action in the tags which needs to be ...
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votes
0answers
19 views

Merge records in a pipe delimited files when first column value is same, based on the date field in the file

Sample File Input: CustomerKey|EmailAddress|storeID|preferenceCd1|preferenceCd2|preferenceCd3|preferenceCd4|preferenceCd5|modifiedSystem|modifiedDate 1006374|meeb12@test.com||2R05||||||2015-03-18 06:...
0
votes
1answer
57 views

Bash script to install package if already not installed (From a directory with many packages) - Fedora 17

I have a directory full of rpms (And their dependencies). Currently I am executing yum localinstall ./packages_directory/*.rpm to install all packages in there. It automatically skips the ones already ...
1
vote
1answer
45 views

Is there a way to create a screen windows from shell script?

I am trying to write a script that creates a new screen session and creates 4 windows within it. I am able to create the screen session, finding it difficult to find out how to replicate Ctrl+A+C, in ...
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votes
0answers
22 views

Loading configuration via putty

I have a NVR hybrid system that runs off of linux. Is there a way I could load a configuration file into this NVR via putty? Basically the file would be a snapshot of a finished NVR with the ntp set ...