I needed to write a small shell script which would allow me to make some decision based on user choices. I needed the user to specify Yes, No or Cancel for an operation. The following piece of hack does the job well.<\/p>\n
# define constants user_choice() { # Handle the input we were given [nN]* ) return $FALSE;;<\/p>\n [cC]* ) exit;;<\/p>\n * ) echo \"Y - Yes, N - No, C - Cancel. Please choose valid option.\";; if user_choice \"Execute Job 1? \"; then The following links were referred to achieve this little script: I needed to write a small shell script which would allow me to make some decision based on user choices. I needed the user to specify Yes, No or Cancel for an operation. The following piece of hack does the job well. #! \/bin\/bash # define constants declare -r TRUE=0 declare -r FALSE=1 user_choice() { […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[27,35],"tags":[],"class_list":["post-533","post","type-post","status-publish","format-standard","hentry","category-linux-os","category-mac-os"],"_links":{"self":[{"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/posts\/533","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=533"}],"version-history":[{"count":1,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/posts\/533\/revisions"}],"predecessor-version":[{"id":534,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=\/wp\/v2\/posts\/533\/revisions\/534"}],"wp:attachment":[{"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=533"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=533"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cyberaka.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=533"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}#! \/bin\/bash<\/p>\n
\ndeclare -r TRUE=0
\ndeclare -r FALSE=1<\/p>\n
\n local str=\"$@\"
\n while true
\n do
\n # Prompt user, and read command line argument
\n read -p \"$str \" answer<\/p>\n
\n case $answer in
\n [yY]* ) return $TRUE;;<\/p>\n
\n esac
\n done
\n}<\/p>\n
\n echo \"Executing Job 1..\"
\nfi
\nif user_choice \"Execute Job 2? \"; then
\n echo \"Executing Job 2..\"
\nfi
\n<\/code><\/p>\n
\nhttp:\/\/linuxcommand.org\/wss0090.php
\nhttps:\/\/bash.cyberciti.biz\/guide\/Returning_from_a_function
\nhttp:\/\/alvinalexander.com\/linux-unix\/shell-script-how-prompt-read-user-input-bash<\/p>\n","protected":false},"excerpt":{"rendered":"