The following commands use redirections. Assuming that you have all the relevant permissions over files and directories, which of the following statements are true? O Command wc > all.txt 2>&1 redirects the standard output and the standard error of command wc to file all.txt in the current directory. O Command cat >> beta redirects the standard output of command cat to file beta in the current directory. If file beta doesn't exist, it will be created. If instead file beta already exists, its content will be retained and the standard output will be appended to follow. O Command cat d0 d1 redirects the standard output of command cat to file d1 in the current directory, and redirects the standard input from file d0. O Command wc > ./alpha redirects the standard output of command wc to file alpha in the current directory. If file alpha doesn't exist, it will be created. If instead file alpha already exists, it will be initially emptied. O Command cat 0< alpha 1> beta redirects the standard output of command cat to file beta in the current directory, and also redirects the standard input from file alpha.

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