Let’s say you want iterate over a series of sequential numbers with Bash. If so, then you could do the following:<\/p>\n\n\n\n
$ for i in {1..10}; do echo $i; done\n 1\n 2\n 3\n 4\n 5\n 6\n 7\n 8\n 9\n 10 <\/code><\/pre>\n\n\n\nNow, let’s say you want to loop over a sequence of numbers, but you want to skip over by 10 each time:<\/p>\n\n\n\n
$ for i in `seq 0 10 100`; do echo $i; done\n 0\n 10\n 20\n 30\n 40\n 50\n 60\n 70\n 80\n 90\n 100 <\/code><\/pre>\n\n\n\nSupposedly, this syntax should work, but it is not on a Mac at least: for i in {0..100..10}; do echo $i; done<\/code> (see source<\/a>). It does work on an Amazon Linux instance though:<\/p>\n\n\n\n $ for i in {0..100..10}; do echo $i; done\n 0\n 10\n 20\n 30\n 40\n 50\n 60\n 70\n 80\n 90\n 100\n $ cat \/etc\/os-release\n NAME=\"Amazon Linux AMI\"\n VERSION=\"2018.03\"\n ID=\"amzn\"\n ID_LIKE=\"rhel fedora\"\n VERSION_ID=\"2018.03\"\n PRETTY_NAME=\"Amazon Linux AMI 2018.03\"\n ANSI_COLOR=\"0;33\"\n CPE_NAME=\"cpe:\/o:amazon:linux:2018.03:ga\"\n HOME_URL=\"http:\/\/aws.amazon.com\/amazon-linux-ami\/\" <\/code><\/pre>\n\n\n\nNow, let’s say you want to skip over gaps that are not as well distributed or evenly spaced. This is probably not the most elegant solution; however, it works:<\/p>\n\n\n\n
$ for i in `seq 3 5` `seq 7 10`; do echo $i; done\n 3\n 4\n 5\n 7\n 8\n 9\n 10 <\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"Let’s say you want iterate over a series of sequential numbers with Bash. If so, then you could do the following: Now, let’s say you want to loop over a sequence of numbers, but you want to skip over by 10 each time: Supposedly, this syntax should work, but it…<\/p>\n