18 lines
1.3 KiB
Bash
18 lines
1.3 KiB
Bash
expected1() { awk -F: '$3 >= 1000 && $3 < 65534 {print $1 " -> " $7}' /etc/passwd; }
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hosts_out() { (cd /tmp && timeout 20 bash /root/hosts.sh localhost 192.0.2.1 2>/dev/null); }
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task 1 "Normal accounts and their shells"
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need "/root/lab-answers/1 lists alice -> /bin/bash" 'grep -qx "alice -> /bin/bash" /root/lab-answers/1'
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need "it lists every account with a UID from 1000 to 65533, and no others" 'diff <(expected1 | sort) <(grep . /root/lab-answers/1 | sort)'
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task 2 "The pipe subshell trap"
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need "/root/lab-answers/2 has pipe: 0" 'grep -qx "pipe: 0" /root/lab-answers/2'
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need "it has process substitution: N with the number of entries in /etc" 'n=$(sed -n "s/^process substitution: //p" /root/lab-answers/2); [ -n "$n" ] && [ $((n - $(ls /etc | wc -l))) -le 3 ] && [ $(($(ls /etc | wc -l) - n)) -le 3 ]'
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task 3 "~/hosts.sh with a function and a local variable"
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need "~/hosts.sh exists" '[ -f /root/hosts.sh ]'
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need "it defines a function with a local variable" 'grep -Eq "local +msg" /root/hosts.sh'
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need "it prints checking localhost, then up" 'hosts_out | grep -A1 -x "checking localhost" | grep -qx " up"'
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need "it prints checking 192.0.2.1, then down" 'hosts_out | grep -A1 -x "checking 192.0.2.1" | grep -qx " down"'
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need "it ends with msg is still: global" '[ "$(hosts_out | tail -n1)" = "msg is still: global" ]'
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