[SOLVED] Alias not working with for loop?

P.G.Krish · 12-08-2016, 01:52 AM

Hi Guys,
I tried to copy the zip file from localhost to two remote machine, I aliased my remote hostsnames.
Hence i use the for loop like this

Code:

 for g in hy1 hy2;do scp kube.tar.gz $g:~;done

hy1,hy2- alias for remote hostnames

when i ran this command, It returns the following error

Quote:

ssh: Could not resolve hostname hy1: Name or service not known
lost connection
ssh: Could not resolve hostname hy2: Name or service not known
lost connection

Its there any problem with using alias for file sharing, with loop

pan64 · 12-08-2016, 02:14 AM

no, alias does not work inside commands, just at the beginning of the line.
you may try to use ~/.ssh/config to set up such aliases especially for ssh, or you can use variables:

Code:

hy1="my1.host.name"
hy2="my2.host.name"
for g in hy1 hy2;do scp kube.tar.gz ${!g}:~;done

(not tested)