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Description
Classic Shell Scripting (Paperback)Shell scripting skills never go out of style. It's the shell that unlocks the real potential of Unix. Shell scripting is essential for Unix users and system administrators a way to quickly harness and customize the full power of any Unix system. With shell scripts, you can combine the fundamental Unix text and file processing commands to crunch data and automate repetitive tasks. But beneath this simple promise lies a treacherous ocean of variations
Shell scripting skills never go out of style. It's the shell that unlocks the real potential of Unix. Shell scripting is essential for Unix users and system administrators-a way to quickly harness and customize the full power of any Unix system. With shell scripts, you can combine the fundamental Unix text and file processing commands to crunch data and automate repetitive tasks. But beneath this simple promise lies a treacherous ocean of variations in Unix commands and standards. Classic Shell Scripting is written to help you reliably navigate these tricky waters.Writing shell scripts requires more than just a knowledge of the shell language, it also requires familiarity with the individual Unix programs: why each one is there, how to use them themselves and in combination with the other programs. The authors are intimately familiar with the tips and tricks that can be used to create excellent scripts, as well as the traps that can make your best effort a bad shell script. With Classic Shell Scripting you will avoid hours of wasted effort. you will learn not only write useful shell scripts but how to do it properly and portably.The ability to program and customize the shell quickly, reliably and portably to get the best out of any individual system is an important skill for anyone operating and maintaining Unix or Linux systems. Classic Shell Scripting gives you everything you need to master these essential skills.Shipping Notes
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4.3 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Thumbs Up for Organic Cotton
Size: 300 Count
When it's time to apply toner or cleanse around the delicate eye area, it's great to have the option of organic cotton pads like these. What I especially like about this brand's style is that the edges are sealed, reducing the chance of getting cotton fuzzy fibers in the eyelashes.
The round pads are lightweight, but hold together nicely to handle the cleansing job. The three pack size will last me a long time and is a good value compared to some other brands I've tried. My understanding is that these are also eco-friendly.
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Clean, lint -free rounds that hold together.
Size: 300 Count
I have purchased these organic cotton rounds at least twice now and they are easy, inexpensive, clean and great for a ton of uses, but especially for cleaning around the eyes without leaving any lint in my eyelashes. When you wet them, they do not fall apart, but are still soft. I highly recommend them.
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Very gentle for the face
Size: 300 Count
I use this brand for the last couple of years and its really good, soft.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Say goodbye to pesky bites!
Size: 1 Count (Pack of 12)
I recently tried the Mosquito Bracelets, and they have become a must-have for any outdoor adventure. Here’s why I highly recommend these DEET-free, natural, and waterproof bands:
These bracelets are impressively effective at keeping mosquitoes at bay. Whether I’m hiking, camping, or just relaxing in my backyard, I’ve noticed a significant reduction in mosquito bites. The natural ingredients used in these bracelets provide a strong and pleasant scent that mosquitoes seem to hate, making them a reliable option for outdoor protection.
One of the standout features is that these bracelets are DEET-free, making them safe for everyone, including children and those with sensitive skin. They are made with natural ingredients, which gives me peace of mind knowing that I’m not exposing myself or my family to harsh chemicals.
The waterproof feature is a game-changer. I can wear these bracelets while swimming, sweating, or during rainy weather without losing their effectiveness. This durability ensures that I stay protected in various conditions, making them perfect for summer activities and trips to the beach or pool.
Each bracelet is individually wrapped, which is incredibly convenient. I can easily toss a few in my bag, car, or camping gear without worrying about them losing potency. The individual packaging also makes them perfect for sharing with friends and family during outings.
The bracelets are soft, flexible, and comfortable to wear. They are adjustable to fit any wrist size, which is great for both adults and kids. I’ve worn them for hours without any discomfort, and they don’t irritate my skin.
I was pleasantly surprised by the longevity of these bracelets. Each band provides up to 72 hours of protection, which is fantastic for extended outdoor activities. This long-lasting feature means fewer replacements and more continuous protection.
Considering the effectiveness, natural ingredients, and convenience, these mosquito bracelets offer excellent value for money. The 12-pack ensures I have enough to last through multiple outdoor adventures or to share with others.
In summary, the Mosquito Bracelets are a fantastic solution for anyone looking to stay protected from mosquito bites naturally and comfortably. Their effective repellent properties, DEET-free composition, waterproof design, convenience, comfort, long-lasting protection, and great value make them a top choice. I highly recommend these bracelets for their overall quality and performance.
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Reviewed in the United States on November 26, 2024
★★★★★ 5
Highly recommend
Size: 1 Count (Pack of 1)
Worked great mosquitoes leave me alone
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Reviewed in the United States on May 25, 2026