swapping ip and hostname in /etc/hostfile

T

torajeshkg

Guru's of Perl,

i have host file and i want to swap hostname and ip address fields ?

thx in advance
grk
 
J

John W. Krahn

Jim said:
Guru's of Perl,

i have host file and i want to swap hostname and ip address fields ?

perl -lane 'if(/^\s*#/){print;}else{print"$F[1]\t$F[0]";}' /etc/hosts

perl -i~ -lape'/^\s*#/||($_="$F[1]\t$F[0]")' /etc/hosts


John
 

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