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

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Inserting a linebreak in lines starting with a pattern

I have a huge file that has the following format: #pair: 0 1 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 1 0 0 ...
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1answer
278 views

Shell script not running with cronjob

I am using PUTTY to reach the server. I can dump the databases with the following command: /usr/bin/mysqldump --all-databases | /bin/gzip > Backup_DB/alldatabases_test.sql.gz When I am running ...
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255 views

running for loop - but wait for string of words in log file to continue

so far I have this: for each in {01..10} ; do ./sb0$each/tomcat_sb0$each start;done that will start my apps at once, but I want it to wait until it reads one line in a file, what's the easiest way ...
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1answer
115 views

Cannot unzip with zip command line

I am having difficult unpacking a zip to a specific directory. I am trying to get all contents of subdirectory of the zipped file and not the parent directory. This is parent directory within zip ...
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1answer
107 views

Unix Scipt Shell: alert on change of specific files

Could any one Help me with the script Im trying to make a script shell that will alerts/email the root if any of those files has been modified and the script has to auto routine , so the script have ...
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1answer
45 views

alias can't find a file that actually exists

On my personnal computer, not a server, in my .bash_profile (I'm on OSX) — sym-linked to .bashrc, I have the following line among some others : alias deploy=sh ~/dir/ectory/deploy.sh The file ...
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1answer
563 views

how to run a shell script on git commit

1) i have a shell script which basically contains some(database testing and integrating test code) , but i have to run this shell script when ever there is commit (or any change ) in my git repo the ...
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1answer
69 views

How do I identify shell script execution vs dot execution

I'm writing a bash script that needs to run on the current process for it to be useful. That is, I want to make sure that the script was invoked with source script.sh or . ./script.sh and not ...
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76 views

Tools to create a 'GitHub' style index page for files/folder on a fileserver?

My workplace doesn't have a document management system. People just throw files on a shared fileserver, where search doesn't really work. Trying to find information/files for a particular project by ...
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1answer
100 views

I want to read a value from a text file and compare it with a number

I am using windows powershell. I want to retrieve a number which is stored in a text file and compare it with some other number using a shell script. If I use $x=$(cat value.txt) it says "command not ...
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1answer
66 views

Loop thru tar file and run commands on each file

I have a process of extracting new code to my servers where the code is packaged in a tar file. Each file referenced in the tar is backed up to a specific directory. I'd like to automate this process ...
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2answers
372 views

curl shell command always returns error status 0 - even when fails on input errors

Example: trying to upload a non existing file - curl -d @no-real-file http://google.com | echo $? - returns 0. How can I make curl fail on input errors?
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1answer
85 views

what does =~ in linux means used in if condition to compare values

Actually tomcat/conf/catalina.properties file contains line shared.loader=/usr/share/sfit/conf I mean value has some path. so using shell script we are updating shared.loader values in file. And also ...
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2answers
98 views

I want to find out word which ends with ()…Use grep

I want to find out word which ends with ()...Using the grep command in linux. grep file_name_where_i_want_to_search "*()" some thing like that....but its not working
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1answer
2k views

Using wildcards in scp command

I have a bash script which copies several files to a remote server using scp. This script works fine but now I need to add a file that contains a wildcard in the name and i have a problem with it. ...
3
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1answer
50 views

Greatest number in a column using shell script

I have a file that contains some data in column format, for example: 219m 219m 3.9g 3.9g 4.0g 4.0g 4.1g 4.1g 4.2g 4.2g 4.2g I want to compare the data and find the greatest value of these. Here g ...
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2answers
6k views

How to create multiple folders and name them by reading lines from text file?

I have a plain text file named Export.txt. It contains a list of geographical places, preceeded by a 3 digit number with leading zeros. Example --START OF FILE-- 001 Aberdeen 002 Bellevue 003 Camas ...
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1answer
34 views

How to get the path of the newest file among the set of files which contains the same ID?

I want to write a script which will take the ID as an input from the user. Based on that input it will search the directories to match a file which contains the given id. Now, the directory has more ...
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1answer
93 views

Bash single quotes in find command

I'm having some troubles getting a shell script to work. I'm trying to dynamically generate the find command based on user input and I'm running into the problem that my variables in the find command ...
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1answer
208 views

How to replace an exact matching word using gsub

Please see the below script - On this nawk 'NR==FNR { a[$1]=$2 ; next} {for ( i in a) gsub(i,a[i])}1' file.dat 1.txt 1.txt ioiufeioru dfoiduf MO_CIF_INP438 fjkdj MO_CIF_INP dsjhdf BP_LINKED_TETES ...
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1answer
100 views

Send me email everytime a certain file is accessed from my apache server

I want to have my server send me an email every time someone accesses a PDF file on my webserver. Perhaps: tail -f /var/log/apache.log | grep pdf > ??something?? How would I generate a new ...
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2answers
3k views

How to shutdown ubuntu server from shell script?

I wrote a simple shell script to shutdown an ubuntu server. Then I created a cron job to execute this script at 23:59 everyday. #!/bin/bash sudo shutdown -h now I got this error message: sudo: no ...
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1answer
2k views

Linux command-line: Fastest way to disable internet (keeping LAN)?

Split question: this other one here is for Windows. Linux: Fastest way to disable internet (keeping LAN) from command line? I think the easiest way to deactivate internet (not LAN) in Linux is ...
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1answer
499 views

ConEmu - running a script in the startup console

I have a script called todo that echoes a todo list to the terminal. I'd like ConEmu to run this every time it starts (thus, in the starting tab). How do I write a task to make it do that? todo is on ...
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1answer
439 views

What's needed to have a shell script run via HTTP Post request?

I was wondering what is needed to trigger a shell script with a HTTP post request. Being in my home wifi I want to call http://ip.of.host/req?run and have a script triggered on my host. I guess I have ...
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486 views

Bash: How to list n random number of files (not head or tail)

I have a large directory containing numerous files of similar kind. I have to send few random files for auditing. These files should not be from the top or bottom (eg. not in head or tail). This is ...
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2answers
2k views

scriptdir=`dirname $0` not working

I am trying to get the directory where my script is in by using: scriptdir=`dirname $0` but this gives me the following error: dirname: invalid option -- 'b' Try `dirname --help' for more ...
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29 views

How to interrupt my script?

I use the following script (which I start from at command) as an alarm: #! /bin/sh set -m while true; do paplay /usr/share/sounds/phone.wav done & I want to bind a key to stop this alarm. Please ...
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3answers
3k views

Shell script bash: Moving file iterate based on month

I have very little knowledge about shell scripts, but unfortunately I have to write one. I want to ask about bash script iteration moving files, I need to move log files sorted by month which will be ...
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1answer
3k views

Bash script gives “command not found” error on if elif statements

Now before you flag this as a duplicate please understand i did search for this problem and i already tried all of the solutions to no effect. My script: #!/bin/bash echo "Enter the number 3" read ...
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2answers
1k views

Bash script to run “pecl install oci8”

I am trying to create shell script that will do the initial provisioning of a vagrant vm (running Ubuntu 12.04). Everything (installing php, apache, oracle instantclient, etc,) works fine, except for ...
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536 views

Unable to run shel scrip file, permission denied

I am having shell script file, basically a setup file for installing xilinx tools. The name of the file is xsetup Also i checked its permission after doing this chmod 777 xsetup In fact the ...
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1answer
272 views

Cron unable to run shell script

I have been trying to get a shell script to run for hours using cron to no avail. I am trying to have the following bash script run every minute #!/bin/bash ...
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54 views

Implement Roll-backing in bash script

I have implemented an Ubuntu package in which bash scripts are using. I followed these for making packages in Ubuntu. ...
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1answer
98 views

Retrival of read names from fastq file for a particular seq

I have a fastq file.The reads are of length 75bp. This is how a fastq file looks like @ERR030899.2391 HWI-BRUNOP16X_0001:4:1:16426:3738#0/1 ...
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2answers
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how to find number of substrings between delimiter? [closed]

I have the string following something(1)^^^something(2)^^^something(3)^^^ ... ^^^something(n) how to find number of something(s) in the string.
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1answer
400 views

Ubuntu start Node.js server and open Chrome in kiosk mode

I'd like for a computer to immediately start a Node.js application on boot. I'd then like Chrome to open in Kiosk mode, but only after the server has been started. Looking on the Ubuntu Stack ...
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1answer
272 views

What can I do about “cannot execute binary file”

I have a little shell script that simply starts up a Java program. It is installed somewhere deep in the hierarchy, so I don't want to add its containing folder too my path. So I put a symbolic link ...
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4answers
297 views

Add a display to let user wait in bash

I am looking for a pretty stupid piece of code for bash that will show a kind of "please wait" rolling display, with the characters : - \ | / The first problem is that I don't know the name of this ...
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38 views

Is there any way to see make file with all variables substituted

I have huge long makefile written by some other guy, where all coomands contain variables. In order to decode what this command is doing i have look around what that variable is and its taking too ...
0
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1answer
260 views

Eject all disks and dmg's with Automator script in Mac OS X

I have created an Automator Service to eject all disks in Mac OS X. find /dev -name "disk[1-9]" -exec diskutil eject {} \; This works, but I still receive an error message afterwords: "The action ...
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3answers
72 views

changing order of files

I have a series of files named in alphabetical order (xaa.tif to xdg.tif). I need to reverse the order of the filenames so that the last file is processed first in a script. I would like to rename ...
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1answer
280 views

How to rename a movie file and also files ins subdirectories (e.g. subtitles) beginning with same prefix

I've several directories with movie files , and also subdirectories with subtitles files with same prefix or starting with same prefix. I want to rename subtitles files with the Directory name it is ...
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5answers
6k views

How to test if a variable is equal to a number in shell

I have this shell script that isn't working. Input: Server_Name=1 if [ $Server_Name=1 ]; then echo Server Name is 1 else echo Server Name is not 1 fi Output: Server Name is 1 But, if i ...
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1answer
96 views

How do I write a conditional assignment in a Linux script?

I need to create a formula in a Linux shell script. If this was DOS, I'd (probably) be fine, but I've made the change and need to learn....! D1 = a 5-digit number between 40500 and 49500 (this is ...
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2answers
478 views

Filling up the hard drive until certain amount of space is left?

I'm doing some testing of a product on Apple and Android devices. I'd like a script that will fill up the devices hard drive until 100KB space is left on the drive it's runs against to. Also in linux ...
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0answers
128 views

Chrome OS sudo startunity app

I am running crouton unity on a Samsung chrome-book. How do i automate a shell script to start unity into a chrome OS app that I can place on the chrome shelf next to the other chrome apps? i want ...
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1answer
69 views

Is it possible to automatize a shared host setup using bash shell script?

Preamble: Never created a shell bash script before. So, and first of all, I'm not even sure if this IS the right tool for the job. If it isn't, please, and before all, let me know what, in your ...
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2answers
324 views

Batch file rename script swapping substrings in filename?

I have a group of files named like title_december_word1_word2.png and want to iterate through the directory and swap word1 and word2 within each file. i.e. go from button_december_state_pressed.png ...
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1answer
2k views

batch move/cut folders and its content to another folder

I have this batch script that allows me to copy folders and its content from a text file, could someone help me adjust it so it move/cut the folders+content and not just copy? set ...