linux - SSH to multiple machines using a batch file -


i have large number of linux devices want able ssh , change netmask. wanted create batch file can export list of ip addresses , run batch change netmask.

i expected script along lines of this:

$user = "username" $pass = "password"  dir /b cmd.exe -arp -a>list.txt /f "tokens=1 delims= " %%a in (list.txt) (  echo ssh <ip address list.txt> $user $pass echo sudo ifconfig eth0 netmask 255.255.255.192 echo exit )

how can work? going along correct lines?

you're close. however, batch has nuances may seem counterintuitive people used *nix shell scripting.

variables need set set command, , there can't spaces on either side of = sign. because allowed include spaces in variable names in batch. seriously.

variables called %var% instead of $var, don't use symbols when you're setting values.

you don't need use cmd.exe call arp; it's valid batch command. because of way arp -a output formatted, you're going want narrow things down. find (or findstr) close you're going grep.

set user="username" set pass="password"  arp -a|find "interface">list.txt  /f "tokens=1" %%a in (list.txt) (     ssh %user%@%%a 'sudo ifconfig eth0 netmask 255.255.255.192' )

it should noted windows has no ssh client natively installed, you're going have find third-party solution that.


Comments

Post a Comment

Popular posts from this blog

Email notification in google apps script -

https://support.google.com/docs/answer/91588?hl=en i have sheet the cells filled in data pulled via apps script, website. pull in exact same data, not. on old sheets version use able emails when data "changes" different value. new sheets, email when new data pasted cells, though exact same data......and, can't set @ ranges anymore, entire document. there easy way watch cells when data changes, , email myself? this looks lot you're trying do. for checking whether value has changed after edit, this gives necessary information it. hence, know whether new value same 1 or not. implementing "workaround" talked in second link, able compare , send email myself if value changed. initiate onedit trigger goes off onedit function uses these lines after checks in place have passed. var email = "xyz@whatever.com"; mailapp.sendemail(email, "triggermail", "a change has occurred in sheet"); note: sends "notification...
Read more

c++ - Difference between pre and post decrement in recursive function argument -

i have following sample code used pre-decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(--c); cout << c << endl; return; } } this function give output input 4 : dp3 dp2 dp1 dp0 0 1 2 3 but when use post decrement void function(int c) { if(c == 0) { return; } else { cout << "dp" << c << endl; function(c--); cout << c << endl; return; } } output goes in infinite loop dp4 can explain me in detail why happens ? this happens because function(c--) called same value of c , when finishes c decremented. recursively called, hence called same value no chance of return , hit stack overflow error. assume this, int x = 1, y = 0; y = x++ result y == 1 , x == 2. if y = ++x , bot x , y 2.
Read more

javascript - IE11 incompatibility with jQuery's 'readonly'? -

the code i'm running has no issues in firefox, or chrome. user typing 1 textbox, tabs next , can continue typing that. when run webpage on ie11, user tabs next textbox , can't type in. textbox has double-clicked before user can insert anything. i've googled , seems ie give problems when using older jquery (i.e. prefers 'prop' 'attr' ). in code below jquery's readonly keyword being used in way ie11 no longer recognise/accept? i assume issue readonly , removeclass('ignore') working expected. //when focus on textbox 1 $("#field1").focus(function() { //remove readonly property textbox 1 $('#field1').prop('readonly', false).removeclass('ignore'); //add readonly property other textboxes $('#field2, #field3, #field4') .prop('readonly', 'readonly').addclass('ignore').val(''); }); i'm using jquery 2.1.3 ...
Read more