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9b7b0184c8
* add Makefile * move udhcpc.user.d script used for remaining dhcp lease time to this package
14 lines
480 B
Bash
14 lines
480 B
Bash
#!/bin/sh
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leasestarttime="$(awk -F'.' '{print $1}' /proc/uptime 2> /dev/null)"
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target_file=/tmp/dhcp_client_info
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target_str="$INTERFACE $lease $leasestarttime"
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# if this interface is present in file, then replace it
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if grep -q "$INTERFACE" "$target_file" 2> /dev/null; then
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# replace the whole line if pattern matches
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sed -i "/${INTERFACE}/c\\${target_str}" "$target_file"
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else
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# interface info was not present, append it to the file
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echo "$target_str" >> "$target_file"
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fi
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