Unix Programmers & Shell Scripting Developers

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Post your Unix shell project on Upwork and find freelance Unix system administrators and programmers to manage your OS administration or Unix shell script writing or modification. These experienced freelancers can create a custom shell for your Unix operating system, coordinate the migration process of your projects between Unix systems, develop shell scripts to implement system security policies (like Firewall), or modify your OS kernel to implement new functions. They can also redirect input and output to and from your Unix system, manage your processes, or import your .sh Unix shell databases into MySQL databases.

A Unix shell is a command-line interpreter and programming language that provides system administrators with a user interface for Unix and Unix-like systems. On Upwork, the world’s largest online workplace, companies hire Unix shell scripting developers to manage their Unix shell scripting and Unix platform-based application support and maintenance.

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Unix shell Job Cost Overview

Typical total cost of Upwork Unix shell projects based on completed and fixed-price jobs.

Upwork Unix shell Jobs Completed Quarterly

On average, 14 Unix shell projects are completed every quarter on Upwork.

14

Time to Complete Upwork Unix shell Jobs

Time needed to complete a Unix shell project on Upwork.

Average Unix shell Freelancer Feedback Score

Unix shell Upwork freelancers typically receive a client rating of 4.87.

4.87
Last updated: June 1, 2015

Popular Unix shell Searches

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  1. Luis fernando A.

    Luis fernando A.

    Linux Sysadmin and AWS Architect with huge web hosting experience

    Brazil - Last active: 7 days ago - Tests: 5

    I'm a creative and hardworking Linux System Administrator and Amazon Web Services Architect and developer. I've been supporting and delivering IT solutions especially for web hosting companies and its set of open source software (Apache, PHP, RoR, MySQL, HAproxy, iptables, OpenVPN and much more) since 2005. I've also worked at IBM managing a farm of more than 1000 Linux and AIX servers as well as its proprietary middleware (DB2, IHS, WebSphere and others).

    $50.00 /hr
    24 hours
    5.00
  2. Igor S.

    Igor S.

    Linux sysadmin, cloud deployments specialist

    Czech Republic - Last active: 1 day ago - Tests: 9 - Portfolio: 1

    I would like to offer you my deep knowledge of servers hardware and software, which allows me to fine-tune servers according to their roles, and my ability to anticipate and solve problems in shortest time possible. No Windows please, Unices only, Linux preferrable. Lately my main point of interest has shifted to deploying and maintaining web projects in cloud environments. I am developing monitoring / management tool ( http://m-script.org ) and supporting existing installations, but I am very well familiar with all well known alternatives from both monitoring and cloud management side, so no problem to implement any of them. The point is, I know very well how it works. And how it doesn't, too :) I am interested in any system administration work, especially in cloud environments. The more challenging you setup is going to be, the better. Automated scalability, cross-clouds deployments, combination of traditional and dynamically scalable resources, DNS/Geo balancing - everything is possible, just let me know your needs.

    $40.00 /hr
    6,971 hours
    4.88
  3. Claudio D.

    Claudio D.

    Web Developer, IT Consultant

    Italy - Last active: 1 day ago - Tests: 6

    For the last 10 years I worked as web developer and Unix systems administrator for private, public and ecclesiastical entities. I have a solid knowledge of web technologies, Unix shell scripting and development tools. I can help you building structured web applications, chrome extensions, firefox addons, web crawlers, scrapers, command-line scripts, automated systems and much more. As my job history shows, I can deliver high quality work for either small ($15) or large ($15,000+) projects. I'm currently focused on the Dart programming language. As a Dart early adopter, I'm a long time community contributor, my contributions include writing articles, open-source projects, speaking at conferences and presenting episodes on Google Developers Live. Portfolio: https://github.com/claudiodangelis

    $50.00 /hr
    629 hours
    5.00
  4. Fabrizio R.

    Fabrizio R.

    Linux system administrator - AWS / EC2 and Rackspace specialist

    Italy - Last active: 1 day ago - Tests: 10 - Portfolio: 1

    I am having more than 10 years of experience in Installing, configuring and administrating various type of *nix servers using various opensource and closed source software for various customer requirement in the industry. My major expert areas in summary:- #Cloud environment :- Amazon Web Services, VPS, Rackspace #Email deliverability: PowerMTA, Interspire #Operating Systems :- Redhat, CentOS, Ubuntu, Dabian, Gentoo, HP-UX, Aix, SunOS,. Windows workstations and Servers 2000, 2003, 2008 R2, etc., #TCP/IP networking :- Advanced ip routing, forwarding, filtering and firewall with Netfilter Iptables #servers :- Sendmail, Postfix, Dovecot, Courier IMAP, Squirrelmail, Roundcube, BIND, Apache, VSFTPD, DHCPD, Squid, Samba #Monitoring and remote admin :- Log analizing with Sarg,Monitoring serves with Nagios and icinga ,Remote desktop with FreeNX, Remote Admin SSh/Telenet #Scripting :- Bash scripting, Perl #Web and Database :- postgresql, MySQL, HTML #CMS: Drupal, Magento, Wordpress Thank you. Best Regards. Fabrizio

    $50.00 /hr
    1,373 hours
    4.91
  5. Ilya N.

    Ilya N.

    Linux System Administrator / DevOps / AWS / Ansible / Python / Django

    Russia - Last active: 8 hours ago - Tests: 11

    12+ years of experience in administration of servers powered by the Linux and FreeBSD operating systems. Highly dedicated to success, a hard working person. Full time independent contractor during the last 4 years. * Amazon Linux, CentOS, Debian, RHEL, Ubuntu * AWS, Digital Ocean, Hetzner, Linode * Ansible * Apache, lighttpd, nginx, uWSGI * MySQL, PostgreSQL * Postfix, Dovecot, Postgrey, SpamAssassin, ClamAV, OpenDKIM * Docker, KVM, libvirt, LXC, OpenVZ, Vagrant, VirtualBox, Xen * BIND, NSD, PowerDNS * LVM, DRBD, Heartbeat, Keepalived * Quagga, Open vSwitch * StrongSwan, OpenVPN, Racoon * Sensu, New Relic, Nagios, Munin, SmokePing, Monit, Collectd * SAN: HP MSA, IBM DS * Backups: duplicity, rsnapshot, bacula * Python (Boto, Django, Scrapy), Ruby, shell, PHP * cPanel/WHM, WHMCS (designed and developed from scratch a registrar module for an unsupported domain registry)

    $50.00 /hr
    1,990 hours
    5.00
  6. Danil Smirnov

    Danil Smirnov

    Web server / Linux system Administrator

    Latvia - Last active: 1 day ago - Tests: 1

    I have Computer Science Specialist Degree and 20 years of professional experience in computing and networking subject. The main area of my professional interests is web servers which mostly based on Linux/Unix operational systems. Also I am an official translator of GNU Mailman (Russian language). My credo Connected to the Internet from the last century Now reached 99% network connection uptime :) Excited about Unix and Linux platforms Love to care about servers and projects Script everything! Log everything! Human operations are most unreliable and should be avoided Let machines communicate and work with each other Let people trust and support each other :)

    $40.00 /hr
    2 hours
    5.00
  7. Daniel J.

    Daniel J.

    Senior Systems Administrator

    United States - Last active: 12/26/2014 - Tests: 4 - Portfolio: 1

    I am a Linux expert. I have been a linux user for 16 years and have used it professionally for 14 years. I was an early adopter of the Nginx web server and over the last 4 years I have been using it exclusively to manage high traffic web sites. I specialize in Linux security and have professional experience securing a web server using methods such-as but not limited to; chroot/jail environments, hardened kernel patches, and role-based access policies. I am an expert at tracking down even the most difficult of problems and most of my clients believe that I have a crystal ball under my desk. I am fluent in Python and PHP and can write everything from small scripts to automate tasks to a full blown command line application.

    $50.00 /hr
    29 hours
    5.00
  8. Roman I.

    Roman I.

    Mr

    Russia - Last active: 11/20/2012 - Tests: 6

    Excellent Linux/web developer and administrator 6+ years of Python/Django experience (working with Django since 0.91). Professional experience of client-side web development (HTML, CSS, JavaScript, JQuery). Focus on writing readable, maintainable and secure code. Hardcore DVCS user, Makefile and bash writer. 6+ years of Debian-based and RH-based Linux systems. Skills in administrating web- and mail-servers. Experienced Xen and KVM user. Focus on automation as many tasks as possible.

    $44.44 /hr
    88 hours
    5.00
  9. Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Mykhaylo Dobrovolskyy

    Netherlands - Last active: 4 days ago - Tests: 7

    10+ years of Linux/Network experience with different systems. Finished and delivered SMB solutions to big corporate companies lie BNP Paribas, ABN AMRO or RBS. My main areas of knowledge are: 1) Networking (Cisco/Juniper/F5/BlueCoat and Linux/FreeBSD based solutions like vyatta/pfsense etc) 2) Security - Cisco IPS/IDS, CheckPoint, Linux/FreeBSD based, Juniper etc 3) Linux administration - mail system, database (mysql/mysql cluster), server with high load average, load balancers for server farms (Cisco/F5 based and Linux based like keepalived or apache/nginx with reverse proxy) 4) VoIP - Cisco/OpenSource(Asterisk and different installations based on asterisks like freepbx/elastix etc) There is a very small piece of my knowledge, I'm always looking for opportunity to grow and I'm pretty sure that if you give me tasks - I'll find out best way howto get it done.

    $27.78 /hr
    4,706 hours
    5.00
  10. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Last active: 1 day ago - Tests: 7 - Portfolio: 2

    Daily engineering and administration of OpenBSD, FreeBSD, Linux and Windows based operating environments. LAN/WAN: Experience identifying a large number of network and host based security problems. Stabilized the bandwidth billing system for accuracy and provided assistance to the web development team. UNX(tm)/Linux/BSD: Designed and built a custom Enterprises Data Ware House utilizing RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Back ported the RedHat clustering tools and GFS modules for RedHat Enterprise Linux 4. Customized the operating environment for running the IBM Information Server 8 family of applications, consisting of IBM DB2 V 9.3, IBM WebSphere 6.0, IBM DataStage and IBM QualityStage. Was the single onsite operations point for the HP-UX, Solaris, FreeBSD, MacOS X, and Linux machines. Wrote custom tools for monitoring and metrics. Fluent in the change management process as it relates to Sarbanes Oxley, internal, and external audits. Extensive documentation of custom applications, primarily our custom data warehouse solution. Designed and implemented the company's external web presence using Solaris 10. Utilized zones, the ZFS file system, and hardware RAID on the T2000 platform. Wrote my own tools in Perl, C, and the Bourne shell. Debugged many complex operational problems. Specialties Started running Linux around 1993, kernel was 0.99 Moved onto SunOS and Open/FreeBSD. Since have worked with HP-UX and SCO extensively. Currently work with RHEL, AMI Linux, CentOS, OpenBSD, EC2, Parallels, and Rackspace.

    $30.00 /hr
    5,687 hours
    4.97