testedCommands.txt

							
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NOTE: This custom shell is capable of executing all common commands, you can check by inputing specific command when prompted 
      to input  command. If shell doesn't support that command then it will shows a message  'SHELL DOESN'T RECOGNIZED THAT COMMAND!'
      If you donot understand any command written below you can copy the command and search it on the web or can ask from gpt
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					      	  ~(COMMANDS TESTED)~
pwd
ls
ls -l
mkdir folderName
exit
&command  like &pwd
sort < input.txt > output.txt
cd directoryPath
ls non_existent_file 2> error.txt
man ls > ls.dat
cat input.txt
cat input.txt output.txt > combined.txt
tr -s '[:space:]' '\n' < sortingFile.txt      
sort testing.txt | grep anyword | cat > a.txt
sort testing.txt | grep anyword > a.txt | wc -l
sort ls.dat | tee a.txt
touch newFile.txt
nano newFile.txt
echo "coding is fun" > fifo1
rm fifo1
echo "code"
sort testing.txt | tee a.txt
sort testing.txt | tee a.txt | wc -l
sort a.txt > fifo1
ls | tee listing.txt | grep .cpp

mkfifo fifo1
cat fifo1&   //it is waiting to read from fifo1 in background
echo "code" > fifo1   //writes to fifo1 and imedialely the background process reads and displays "code" as output


sort fifo1 > a.txt&
echo "hello" > fifo1



(USEFUL INFO):
When you write data to a FIFO, it will block until another process reads from it. If there's no process reading from the FIFO, the writer will block indefinitely.
Ensure that there is another process reading from fifo1. If you have a shell script or another command waiting to read from fifo1, make sure it's running and actively reading. Once a process starts reading from the FIFO, the echo command should unblock and return.