1
vote
3answers
83 views

How to sum match numbers

I'm new at scripting, and need some help. Will appreciate your answers. I got this assignment, which is to find the sum of all five-digit numbers (in the range 10000 - 99999) containing exactly two ...
7
votes
3answers
239 views

How can a Bash script tell how it was run?

I have a Bash script I was trying to make to help me run a rather complex command with small changes that it would ask me about through echo and read. I have found solutions to force it to run a ...
1
vote
2answers
59 views

Check that a bash script has exactly two arguments which are directories

I'm writing a bash script that compares two directories, but I'm not sure how to check conditions For example, if the user enters 1 arg instead of 2 (we need 2 since we're comparing two directories), ...
1
vote
3answers
123 views

bash script that reads user input and uses “cal” command to validate dates

I want to write a script that reads my input (for example if my script is called "check", then I would type "check 9 4 1993" and that input would go through the cal command and will check through the ...
0
votes
1answer
30 views

Shell script permission denied despite +x flag

This is an odd one, it only happens on one server (shared hosting, so I have limited access to configuration and logs), but I can't wrap my head around it. I have a shell script which runs some app's ...
2
votes
1answer
180 views

How to remove file log with file name

Assume, I have log files with this name format. NameLog.log.2014-09-27 NameLog.log.2014-09-28 NameLog.log.2014-09-29 NameLog.log.2014-09-30 NameLog.log.2014-10-01 NameLog.log.2014-10-02 ...
1
vote
1answer
37 views

ffmpeg script - slicing a video into multiple slices

I am currently using ffmpeg to slice video files. I automated the process through a script called ffmpeg_split.sh. To view the script click here. When I run the script I have an error when trying to ...
6
votes
2answers
364 views

What is the reliable way of getting each user's .ssh directory from bash?

I can parse the /etc/passwd with augtool: myuser=bob usershome=`augtool -L -A --transform "Passwd incl /etc/passwd" print "/files/etc/passwd/$myuser/home" | sed -En 's/\/.* = (.*)/\1/p'` ...but it ...
4
votes
2answers
128 views

When is 'if' not necessary?

In some scripts, I've seen if conditional statements written as: if [ some_conditional_statement ]; then # do stuff fi or [ some_conditional_statement ] && #do stuff Is the second ...
3
votes
3answers
184 views

How to copy, execute and retrieve data from a remote computer?

I am trying to run some calculations on a remote computer. Basically I want to copy some files to the computer, load a software, execute the calculation, then retrieve the data back. I have created a ...
2
votes
2answers
44 views

Interacting with a running interactive console program from a different process

I have a console program with an interactive shell, similar to say, the Python interactive shell. Is there an easy way to start this interactive program A and then use another program B to run A? I ...
0
votes
0answers
22 views

Can't set PATH with a script [duplicate]

I have written a script which was supposed to add some value to environmental variable PATH, but script doesn't do that if I start it with ./script.sh. #! /bin/bash INSTALLDIR="/opt/ARM" ...
1
vote
0answers
38 views

Maintain screen session when executing shell script on boot

On Ubuntu 14.04, I have a crontab entry set to run on reboot: @reboot /root/start_server.sh And here's start_server.sh: screen -dmS server bash -c "cd server ; ./run.sh" When the system starts ...
0
votes
2answers
34 views

7z from bash script won't exclude directories

I've encountered with kinda strange behaviour of 7z (or bash, I don't know yet.). With the following script: #!/bin/bash find /home/user -type f -name "*.pdf" | cut -c 10- > ...
1
vote
1answer
77 views

Why are UNIX shells like this and how can I work around it?

One of the things I've noticed about BASH and other UNIX shells is that, by default and when used in typical ways, they spawn subshells for almost everything. e.g. foo=$(grep "someword" ...
0
votes
2answers
45 views

Bash script: test command -o option

I have a piece of code like this: count=0 until [ -f $filename -o $count -ge 60 ] do count=$((count+1)) sleep 1 done I know [ -f $filename -o $count -ge 60 ] is a test command, "-f $filename" ...
3
votes
3answers
162 views

Having an issue searching for a string in a file

I have tried to use a 'case' loop but it doesn't work for a reason unknown to me. This is my script for the case loop. echo "Do you wish to search again? [y/n]" read INPUT_STRING2 case ...
2
votes
1answer
91 views

Opening a terminal other than xterm, running a command on it, and not closing the terminal after it succesfully finished

I have the following script in my arch linux box: #!/bin/bash xterm -e "sudo pacman -Syu;bash" This will fire up an xterm, and run the command sudo pacman -Syu on it. Because of the ;bash part, it ...
0
votes
1answer
60 views

Got “syntax error near unexpected end of file” in bash script

I'm making an script that gives me a day like this jjj/yyyy when I give it a day like this dd/mm/yyyy and I need it to have an error when you don't write correctly but I'm starting and it's not ...
6
votes
2answers
168 views

how to mount a range of drives in bash?

I use something like this to unmount a range of drives: umount /dev/sd[c-k]2 Is there any way to use same thing with mount? something like this: mount /dev/sd[c-k]2 /[c2-k2]
2
votes
1answer
28 views

create numbered files with defined content with bash

I want to create 69 files with a filename from 4006 through to 7075 and it each file needs to have some enumerated content, the following code prints on the shell what I would like to have inserted ...
2
votes
3answers
251 views

Run a script on multiple shells?

I have two servers one AIX with default shell ksh, the other RHEL with default shell bash. I have a script that is mounted on both that will run similar commands but for either AIX or Linux. This ...
1
vote
1answer
93 views

Compare file size of multiple files in an array [closed]

Scenario: Ftp site has 100s of files. Once a day, all the .gz files are copied to an AWS site then renamed. Only the date is kept in the file name. Some of the files corrupted during copy. A txt ...
1
vote
4answers
73 views

Delete all but largest file in multiple directories

I have multiple subdirectories in /home/usr/ProjZ/programs/ that each contain multiple (or one) .js files. What I need to do is delete all but the largest .js file, if the subdirectory contains ...
3
votes
1answer
160 views

Preserve formatting when command output is sent to a variable? [duplicate]

I have a bash script. If I run this command to: grep for certain patterns, transform the output, sort the output dedupe the output then I get one grep find per line in terminal LC_ALL=C grep ...
3
votes
2answers
101 views

split a file, pass each piece as a param to a script, run each script in parallel

I have a words.txt with 10000 words (one to a line). I have 5,000 documents. I want to see which documents contain which of those words (with a regex pattern around the word). I have a script.sh that ...
0
votes
0answers
46 views

bash script loses readonly value after first time thru loop

I have a bash script which seems to lose the value of the readonly constant after the first time thru the for-in loop. For example: #!/bin/bash readonly DIR="./groups/" for output in "${array[@]}" do ...
2
votes
2answers
39 views

I seem to be “losing” this prompt. What is happening?

I ssh into an ubuntu 12.04 cloud server and start a web server like this (w/ bash): $ nohup python tserver.py & [2] 2122 $ nohup: ignoring input and appending output to `nohup.out' After I run ...
1
vote
2answers
243 views

How to iterate through multiple file extension without caring about case sensitivity?

I've seen various topics on how to iterate through multiple file extensions but in most case, the list is defined. example: for file in ${arg}/**/*.{txt,h,py} do .... done As can be seen, ...
5
votes
3answers
307 views

How to iterate through a list of files with spaces that is sorted (case insensitive)?

I am doing this in OSX which uses bash but obviously, not all bash conventions are used so hopefully your suggestion is available to me :) I have the following files fun bar1.txt Foo bar2.tXT ...
2
votes
1answer
88 views

Fetching Remote Windows System Information From Linux Server

I need a script/command that would fetch Windows System Information (Host Name,User Name, Domain, OS Info, Hardware Info, Memory Info, processor Info, etc) by running it on a Linux Server (RHEL 6.5 ...
6
votes
2answers
279 views

Passing arguments from a file to a bash script

I' ve got this situation: ./ ./myscript.sh ./arguments.txt ./test.sh Inside myscript.sh, i have to run the file test.sh, passing to it the arguments contained inside arguments.txt. myscript.sh is: ...
0
votes
2answers
259 views

Solution to integer expression expected [closed]

So I when I run this code on my mac there are no errors, and it provides me the perfect output. But when I run it on Ubuntu or CentOS i get the following error integer expression expected ...
0
votes
1answer
57 views

Reusing user input in a script

I have the following script which works: #!/bin/bash xfreerdp /cert-ignore /f /v:farm.company.com /d:company.com /g:rds.company.com /u:$(zenity --entry --title="Username" --text="Username") ...
0
votes
2answers
144 views

If UID=1000 continues, else exit

I am wondering how to implement the following in a bash script. if UID=1000, continue else exit confirm choice (y/n)
1
vote
1answer
75 views

Why does the same sed regex (after grep) fail when run in a bash script vs bash command line?

Here's the script. It is successful when I run it from the BASH prompt, but not in the script. Any ideas? When I say "fails," I mean the sed regex doesn't match anything, so there is no replaced ...
0
votes
2answers
77 views

How to count number of instance of a word starting at another word

I need to grep the MySQL-error log starting at today's date formatted like: `date +"%y%m%d"` (140710) And look for all instances of the word partitioned. I've tried various things to no avail. ...
2
votes
1answer
104 views

diff two directories for changes and format output to use for script

I currently try to monitor two directories and subdirectories for changes in files. The directories contain the same set of files, some of them are changed. So I thought I might use the diff command ...
2
votes
1answer
143 views

What is the difference between filename=${1:-/etc/hosts} and filename=/etc/hosts? [duplicate]

What is the difference between filename=${1:-/etc/hosts} and filename=/etc/hosts? For example: filename=/etc/hosts if [ -r "$filename" ] && [ -s "$filename" ]; then md5sum $filename ...
0
votes
2answers
99 views

set variable options with dot

I'm trying to interface with a system not managed by me that is doing some Unix command scripts and command to easily execute a job. There is a variable substitution that doesn't work and I wonder if ...
2
votes
4answers
517 views

How to initialize an array using awk and bash?

I am trying to store values of the first line of a text file into an array. Here is what I have so far: arr_values=() awk ' NR==1 { for (i=0; i<=NF; i++) ...
2
votes
4answers
278 views

Inserting a line in a file only if this line isn't yet part the file

Total newbie to shell scripting, I am searching to create a script to automatically apply some custom configuration to text based configuration files. In the present case, I am searching to add 2 ...
1
vote
1answer
93 views

Why isn't this XMLStarlet Query Working?

I'm trying to write a simple bash script that parses price info from the ebay developer API search results. Here's an example of XML search results for "Detective Comics 700": ...
0
votes
2answers
46 views

Write log for a false statement of an if condition which returns exit 2

I have a script running every 5 mins with two exits in a condition clause. #!/bin/bash date=$(date +%Y) if [ $date -eq '2014' ] then echo "Current year is $date" exit 0 else echo "Current ...
2
votes
1answer
108 views

SSH Command behaves differently in Expect Script

I'm using this command on Server1 ~# ssh root@Server2 /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys to append the contents of Server2's id_rsa.pub to the authorized_keys of Server1. It ...
3
votes
3answers
253 views

Howto run interactive commands, as another user

I'm trying to write a bash script that context switches to another user (root, in this case) executes a set of commands to i. create a user (interactively prompting invoker for username) then ii. ...
3
votes
2answers
134 views

Error when calling mv with wildcards

#! /bin/bash error_text=$(tail -n +1 /path/dir/folder/exc/a/update/Abd/ER/* | \ grep 'Warning\|Loaded\|Event') echo $error_text nc 10.10.99.45 25 << EOF ehlo mail.abc.pvt mail from: ...
3
votes
2answers
266 views

Checking the status of custom services with a script

I have a handful of shell scripts that start WebLogic managed servers. I need to design a master script that does the following: Executes the shell script for a component\managed server Checks to ...
0
votes
1answer
63 views

Is there a way of copying only directories and not files in bash? [closed]

I want to copy only directories from a folder on a remote server to my server. Is that possible? Here is the code I have so far but it copies files and folders: scp -rq ...
0
votes
2answers
156 views

Simple Script to setenv tcsh or export bash

I am having problems with simple scripting, my Box is CentOS so bash is the default shell, now I wanted to send a line via setenv (tcsh) and would like to make a script that will ask me to input a ...