Q: grep command to search for strings of text within files. If you are looking for a file that contains a certain phrase or string of characters, you can use the grep command. A basic grep command is formatted as follows: grep -r -i "search query" /path/to/directory/ The -r sets the search to "recursive", so it will search the current directory and all subdirectories for any file that contains the query string. The -i indicates that the query is not case-sensitive. If you want to force the search to pay attention to case, omit the -i operator. When you perform a grep search as above, you'll see the file name along with the text with the matching query highlighted. You can hide the matching text and just display the file names and paths by including the following: grep -r -i "search query" /path/to/directory/ | cut -d: -f1 The grep command will return an error when it tries to access folders without the correct permissions or runs into empty folders. You can send the error messages to /dev/null, which will hide them from the output. grep -r -i "search query" /path/to/directory/ 2>/dev/null
A: Use the . Cut out the extra text. Hide error messages.

Q: Place the liner tight to the bottom and sides of the pool. Cut the liner to fit the sides correctly, making sure it sits right at the top line of the pool. Line both the main pool and the hole for the water zone so they are protected. The synthetic liner is a good way to prevent leaks or cracks in the pool due to rocks or other objects. Another option is to apply a layer of bentonite clay over the holes for the swimming pool and the plant zone. You will need at least 6 pounds (2.7kg) of clay per square foot to seal the pool. Spread a 2 to 3 inches (5.1 to 7.6cm) layer of clay with your hands. Wear gloves and a face mask to protect yourself. If the soil is very sandy, you may need to double the amount of clay per square foot to ensure the pool is properly sealed. Pack the clay down with a tractor or a plate compactor to really seal it into the soil. Use synthetic liner that is black over the base liner or the clay so it can trap the heat of the sun, heating up the pool naturally. It will also help to protect the pool from leaking. Leave a piece of liner hanging between the pool and the plant zone. Cut the piece so it sits 1 to 2 inches (2.5 to 5.1cm) below the top edge of the pool. This piece of liner will act as a barrier between the pool and the plant zone. Use scissors to cut the liner so it just drapes over the sides of the pool. Use smooth slabs or rocks to secure the liner and create an extra barrier. Lay them against the walls of the pool so they sit flush to the top edge of the pool. You can then fill in any gaps between the large rocks with smaller rocks or slabs. You can also use stone slabs that have been cut to fit together if you want a smooth, even surface for the sides of the pool. The stone slabs will be heavy to lift so you may need someone to help you lift them in place. Cover the bottom of the pool with gravel or pea rock to create a good habitat for microorganisms. This will also keep the bottom soft and easy to walk on. Make sure you use gravel or pea rock that has been washed so there is no dust or particles in the pool. Finish off the pool by placing small rocks or pebbles on the edge so they cover up the black liner. Make sure the liner is completely covered and there is a clear perimeter around the edge of the pool with the rocks. Reinforce the rocks with gravel and soil so there are no leaks. Make sure there is a clear pathway between the pool and the plant zone, as water will need to flow between these 2 areas. Use fresh water to fill the pool to the top edge. Then, let it sit and monitor the pool for any leaks or issues. Test the water with a home water testing kit to ensure the pool levels are safe and not contaminated with any chemicals or biological substances. Do not fill the plant zone until you are ready to add plants to the pool.
A: Use synthetic liner to smooth out the bottom and sides of the pool. Apply bentonite clay if you do not want to use a synthetic liner. Lay black liner on the bottom and sides of the pool to reflect the sun. Place large rocks on the walls of the pool to keep the liner in place. Fill the pool with 4 to 5 inches (10 to 13cm) of gravel or pea rock. Line the edge of the pool with rocks or pebbles. Put water in the pool and let it rest for a week.

Q: For quick counting, the first thing you should do is create a stack of all of your 1s, all of your 5s, all of your 10s, all of your 20s, and so on. Gather all of your bills into one big stack and then go through it one bill at a time and put each one in the stack with its respective denomination. Do this while or after you separate your bills into different stacks. This may make counting faster and easier, and also keeps your money more organized. Pick up one stack and hold it in your nondominant hand. Grab the top bill with your dominant thumb and pointer finger to make sure it's only 1 bill. Then place the bill down on a flat surface in front of you while you count it. Continue to grab and move the bills one at a time while counting by the denomination. For example, if you're counting a stack of 5 dollar bills, think or say "5, 10, 15, 20," as you grab and place the first 4 bills onto the flat surface. Secure and set aside each stack of 50 bills of the same denomination. This is easy if you're counting 1s, because you'll just stop once you've reached 50. It's helpful to know the monetary value of 50 of each denomination beforehand so that you know when to stop. If you're counting 5 dollar bills, stop when you get to $250. If you're counting 10 dollar bills, stop when you get to $500. If you're counting 20 dollar bills, stop when you get to $1,000. Continue banding each stack of 50 bills and setting them aside. Once you're out of bills, add each stack together starting with the higher denominations and then add any leftover bills afterward. It may be easier and faster to use a calculator at this point. For example, if you have 3 stacks of 20s, 2 stacks of 10s, 5 stacks of 5s and 23 loose 1 dollar bills, your math would look like this: 1,000 + 1,000 + 1,000 + 500 + 500 + 250 + 250 + 250 + 250 + 250 + 23 = 5,273.
A:
Separate your stacks by denomination. Adjust the bills so that they're all facing the same direction. Count each bill as you pass it from one hand to the other. Wrap a rubber band around a stack once you reach 50 bills. Add up all banded stacks and leftover bills.