| [ | |
| { | |
| "query": "Retrieve only build number of current kernel, ie. #104", | |
| "gold": "uname -v | grep -o '#[0-9]\\+'", | |
| "gold2": "uname -r | awk -F'-' '{print $2}'" | |
| }, | |
| { | |
| "query": "Print reverse lookup for adress 127.0.0.1", | |
| "gold": "dig -x 127.0.0.1", | |
| "gold2": "nslookup 127.0.0.1" | |
| }, | |
| { | |
| "query": "List file information of the full path of command \"grep\"", | |
| "gold": "ls -ald `which grep`", | |
| "gold2": "stat $(which grep)" | |
| }, | |
| { | |
| "query": "Extract host name part from \"http://www.google.com\"", | |
| "gold": "echo \"http://www.google.com\" | cut -d'/' -f3", | |
| "gold2": "echo \"http://www.google.com\" | sed -E 's|https?://([^/]+).*|\\1|'" | |
| }, | |
| { | |
| "query": "List environment variables and their values, escaping all semicolons with a backslash.", | |
| "gold": "env | sed 's/;/\\\\;/g'", | |
| "gold2": "while IFS= read -r line; do echo \"${line//;/\\\\;}\"; done < <(env)" | |
| }, | |
| { | |
| "query": "Displays a tree of all process alongside their command line arguments.", | |
| "gold": "pstree -a", | |
| "gold2": "ps -eo pid,ppid,cmd --forest" | |
| }, | |
| { | |
| "query": "Create intermediate directories \"dir\" and \"subdir\" as required and create \"subsubdir\"", | |
| "gold": "mkdir -p dir/subdir/subsubdir", | |
| "gold2": "mkdir -p dir/subdir/subsubdir" | |
| }, | |
| { | |
| "query": "Print numbers 1 through 10 separated by \":\"", | |
| "gold": "yes | head -n10 | grep -n . | cut -d: -f1 | paste -sd:", | |
| "gold2": "echo $(seq -s \":\" 1 10)" | |
| }, | |
| { | |
| "query": "print all readline bindings", | |
| "gold": "bind -P", | |
| "gold2": "bind -P" | |
| }, | |
| { | |
| "query": "list names of bind functions containing \"p\"", | |
| "gold": "bind -l | grep p", | |
| "gold2": "bind -l | egrep 'p'" | |
| }, | |
| { | |
| "query": "Save first IP address of domain 'google.com' in 'address' variable and display it", | |
| "gold": "address=$(dig +short google.com | grep -E '^[0-9.]+$' | head -n 1) && echo $address", | |
| "gold2": "address=$(dig +short google.com | grep -m 1 '^[0-9]' | head -n 1) && echo $address" | |
| }, | |
| { | |
| "query": "Remove all characters except \";\" and digits from the string \" Hello world;876\t \"", | |
| "gold": "echo ' Hello world;876\t ' | tr -cd ';0-9'", | |
| "gold2": "echo \" Hello world;876 \" | sed 's/[^0-9;]//g'" | |
| }, | |
| { | |
| "query": "Remove leading and trailing spaces or tabs from \" Hello world!\t \"", | |
| "gold": "echo ' Hello world!\t ' | sed -e 's/^[ \\t]*//' | sed -e 's/[ \\t]*$//'", | |
| "gold2": "echo -n \" Hello world! \" | sed 's/^[ \\t]*//;s/[ \\t]*$//'" | |
| }, | |
| { | |
| "query": "Remove the last 3 characters from \"987654321\"", | |
| "gold": "echo 987654321 | rev | cut -c 4- | rev", | |
| "gold2": "echo \"987654321\" | sed 's/...$//'" | |
| }, | |
| { | |
| "query": "Print source of the file system containing current working directory.", | |
| "gold": "df . | tail -1 | awk '{print $1}'", | |
| "gold2": "df -P . | awk 'NR==2 {print $1}'" | |
| }, | |
| { | |
| "query": "List all variables (names only) with names containing \"H\".", | |
| "gold": "env | awk -F= '{if($1 ~ /H/) print $1}'", | |
| "gold2": "env | grep '^[^=]*H[^=]*=' | awk -F= '{print $1}'" | |
| }, | |
| { | |
| "query": "Print a list of unique users who are logged in", | |
| "gold": "who | cut -d' ' -f1 | sort | uniq", | |
| "gold2": "who | awk '{print $1}' | sort | uniq" | |
| }, | |
| { | |
| "query": "ping 192.168.1.1", | |
| "gold": "ping -w 1 192.168.1.1", | |
| "gold2": "ping -w 1 192.168.1.1" | |
| }, | |
| { | |
| "query": "Print a line of 99 '=' characters", | |
| "gold": "seq -s= 100|tr -d '[:digit:]'", | |
| "gold2": "printf '=%.0s' {1..99}" | |
| }, | |
| { | |
| "query": "Count number of users logged in", | |
| "gold": "who | awk -F' ' '{print $1}' | sort -u | wc -l", | |
| "gold2": "who | wc -l" | |
| }, | |
| { | |
| "query": "Displays calendar of a previous, current and next month for December of 2120 year.", | |
| "gold": "cal -3 12 2120", | |
| "gold2": "cal -3 12 2120" | |
| }, | |
| { | |
| "query": "Extract, sort and print only group names from /etc/group.", | |
| "gold": "cut -d: -f1 /etc/group | sort", | |
| "gold2": "cut -d: -f1 /etc/group | sort | uniq" | |
| }, | |
| { | |
| "query": "Calculate the sum of all the numbers from 1 to 10", | |
| "gold": "seq 10 | jq -s 'add'", | |
| "gold2": "echo $(( (10 * (10 + 1)) / 2 ))" | |
| } | |
| ] |