mkdir testdir && cd testdir && touch "File "{1..3}
ls -1
awk '{print $0" "$0"_renamed"}'
awk '{print "\""$0"\" \""$0"_renamed\""}'
xargs -n2 mv
ls -1 |awk '{print "\""$0"\" \""$0"_renamed\""}' | xargs -p -n2 mv
ls -1 |awk '{print "\""$0"\" \""$0"_renamed\""}' | xargs -n2 mv
ls -1
cat file1.txt file2.txt > file3.txt
echo "" | cat 1.txt - 2.txt > 3.txt
awk -F/ 'BEGIN{print "var arrIm = ["}{print "'\''новый путь/"$NF"'\'',"}END{print "];\n"}' fileOldPath.txt > fileNewPath.txt
curl --remote-name-all --parallel $(<urls.txt)
str="просто строка"
arg1="аргумент1"
arg2="аргумент2"
echo "Было: $str"
read -e -p "Добавить аргументы ? " choice
[[ "$choice" == [Yy]* ]] && str="$str $arg1 $arg2"
echo "Стало: $str"