fish-shell/share/functions/__fish_print_hostnames.fish
Fabian Homborg b9b39f7c31 Replace sed -E with string replace
This is to the benefit of systems with ancient GNU sed, which does not
recognize "-E", but only "-r".

Fixes #2305 - even if it doesn't replace all `sed -E` invocations in the
codebase, the others are unlikely to occur on CentOS and other similarly
crusty systems.
2015-09-28 20:06:20 +02:00

29 lines
1.0 KiB
Fish

function __fish_print_hostnames -d "Print a list of known hostnames"
# Print all hosts from /etc/hosts
if type -q getent
getent hosts 2>/dev/null | tr -s ' ' ' ' | cut -d ' ' -f 2- | tr ' ' '\n'
else if test -r /etc/hosts
tr -s ' \t' ' ' < /etc/hosts | sed 's/ *#.*//' | cut -s -d ' ' -f 2- | __fish_sgrep -o '[^ ]*'
end
# Print nfs servers from /etc/fstab
if test -r /etc/fstab
__fish_sgrep </etc/fstab "^\([0-9]*\.[0-9]*\.[0-9]*\.[0-9]*\|[a-zA-Z.]*\):"|cut -d : -f 1
end
# Print hosts with known ssh keys
# Does not match hostnames with @directives specified
__fish_sgrep -Eoh '^[^#@|, ]*' ~/.ssh/known_hosts{,2} ^/dev/null | string replace -r '^\[([^]]+)\]:[0-9]+$' '$1'
# Print hosts from system wide ssh configuration file
if [ -e /etc/ssh/ssh_config ]
awk -v FS="[ =]+" -v OFS='\n' 'tolower($0) ~ /^ *host[^*?!]*$/{ $1=""; print }' /etc/ssh/ssh_config
end
# Print hosts from ssh configuration file
if [ -e ~/.ssh/config ]
awk -v FS="[ =]+" -v OFS='\n' 'tolower($0) ~ /^ *host[^*?!]*$/{ $1=""; print }' ~/.ssh/config
end
end