bash - How to print a character using Shell script -

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below script acquire mac of machine , store within config file.

my problem within each line have character " " , dont print inside file, how can write file using " "

mac=$(ifconfig eth0 | grep -o -e '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}') echo " view.sslverificationmode = *3* view.autoconnectdesktop = *true* view.autoconnectbroker = *true* view.kiosklogin = *true* view.noninteractive = *true* view.fullscreen = *true* view.nomenubar = *true* view.defaultbroker = *viewcs* view.defaultuser = *cm-${mac//:/_}* " > /etc/vmware/view-mandatory-config; sed -i 's/*/"/g' /etc/vmware/view-mandatory-config

with cat , here-doc can use multi-line input without escaping charaters

mac=$(ifconfig eth0 | grep -o -e '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}') cat << eot > /etc/vmware/view-mandatory-config view.sslverificationmode = "3" view.autoconnectdesktop = "true" view.autoconnectbroker = "true" view.kiosklogin = "true" view.noninteractive = "true" view.fullscreen = "true" view.nomenubar = "true" view.defaultbroker = "viewcs" view.defaultuser = "cm-${mac//:/_}" eot

cat relay stdin input generated here document stdout, enabling redirection file


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