prompt - Bash confirm input or re enter -


i have simple bash script asks user if enter input. response y or n

if enter n script exits.

if enter y asked questions. @ end want ask them confirm input.

if it's correct we'll carry on, if not want return them questions re enter information.

so far i've got:

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]* ) exit;;         [yy]* )              echo -e "description"             read desc              echo -e "address"             read address          * ) echo "please answer yes or no.";;     esac done

this seems work fine, i've tried add confirmation.. thats not working.

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]* ) exit;;         [yy]* )              echo -e "description"             read desc              echo -e "address"             read address              echo -e "$desc - $address"              while true;                 echo -e "\nare these details correct ? "                 read conf                 case $conf in                     [nn]* ) // return enter details //                     [yy]* ) // carry on details entered // break;;                 esac             done           * ) echo "please answer yes or no.";;     esac done

the aim follows

the user selects y , enters description , address. page shows them summary of they've entered , asks them are these details correct ? if move on , script progresses. the input wrong script returns them enter description followed enter address.

can advise how this. thanks

you add 1 more loop level , use optional level indicator of break [n]:

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]*) exit;;         [yy]*)             while true;                 echo -e "description"                 read desc                  echo -e "address"                 read address                  echo -e "$desc - $address"                  while true;                     echo -e "\nare these details correct ? "                     read conf                     case $conf in                         [nn]* ) break 1;;                         [yy]* ) break 3;;                     esac                 done             done;;         *) echo "please answer yes or no.";;     esac done

Comments

Post a Comment

Popular posts from this blog

Is there a better way to structure post methods in Class Based Views -

i'm using class based views in django , never specify url in ajax calls , omit action parameter in form because know these requests go through post method of class based view. notice view - profile page make many requests depending on user updating on page - post method become convoluted , if/else mess example: def post(self, request, *args, **kwargs): # handle user changing available date if request.post.get('availabledate') != none: self.updateavailabledate(request) return jsonresponse({'result':'success'}) if request.post.get('newprojectname') != none: creative_user = creativeuserprofile.objects.get(id = request.user.id) project = project.create_project(creative_user, request.post['newprojectname']) project.save() return jsonresponse({'projectid': project.id }) if request.post.get('projectimage') != none , request.files['file']: proj...
Read more

performance - Why is XCHG reg, reg a 3 micro-op instruction on modern Intel architectures? -

i'm doing micro-optimization on performance critical part of code , came across sequence of instructions (in at&t syntax): add %rax, %rbx mov %rdx, %rax mov %rbx, %rdx i thought had use case xchg allow me shave instruction , write: add %rbx, %rax xchg %rax, %rdx however, dimay found agner fog's instruction tables , xchg 3 micro-op instruction 2 cycle latency on sandy bridge, ivy bridge, broadwell, haswell , skylake. 3 whole micro-ops , 2 cycles of latency! 3 micro-ops throws off 4-1-1-1 cadence , 2 cycle latency makes worse original in best case since last 2 instructions in original might execute in parallel. now... cpu might breaking instruction micro-ops equivalent to: mov %rax, %tmp mov %rdx, %rax mov %tmp, %rdx where tmp anonymous internal register , suppose last 2 micro-ops run in parallel latency 2 cycles. given register renaming occurs on these micro-architectures, though, doesn't make sense me done way. why wouldn't register renamer ...
Read more

c# - Asp.net web api : redirect unauthorized requst to forbidden page -

im trying redirect unauthorized request forbidden page instead i'm getting forbidden page in response body , how can fix ? here's startup class : app.createperowincontext(storecontext.create); app.createperowincontext<applicationusermanager>(applicationusermanager.create); app.createperowincontext<applicationsigninmanager>(applicationsigninmanager.create); app.usecookieauthentication(new cookieauthenticationoptions { authenticationtype = defaultauthenticationtypes.applicationcookie, expiretimespan = timespan.fromdays(30), }); app.useexternalsignincookie(defaultauthenticationtypes.externalcookie); app.usetwofactorsignincookie(defaultauthenticationtypes.twofactorcookie, timespan.fromminutes(5)); app.usetwofactorrememberbrowsercookie(defaultauthenticationtypes.twofactorrememberbrowsercookie); the method im trying reach : [httpget] [authorize(roles = "admin")] public string getcurrentusername() { return userman...
Read more