Given this file:
鉴于此文件：
Variable_name Value
Aborted_clients 0
Aborted_connects 4
Binlog_cache_disk_use 0
Binlog_cache_use 0
Binlog_stmt_cache_disk_use 0
Binlog_stmt_cache_use 0
Bytes_received 141
Bytes_sent 177
Com_admin_commands 0
Com_assign_to_keycache 0
Com_alter_db 0
Com_alter_db_upgrade 0
Com_alter_event 0
Com_alter_function 0
Com_alter_procedure 0
Com_alter_server 0
Com_alter_table 0
Com_alter_tablespace 0
Com_analyze 0
Com_begin 0
Com_binlog 0
Com_call_procedure 0
Com_change_db 0
Com_change_master 0
Com_check 0
Com_checksum 0
Com_commit 0
Com_create_db 0
Com_create_event 0
Com_create_function 0
Com_create_index 0
Com_create_procedure 0
Com_create_server 0
Com_create_table 0
Com_create_trigger 0
Com_create_udf 0
Com_create_user 0
Com_create_view 0
Com_dealloc_sql 0
Com_delete 0
Com_delete_multi 0
Com_do 0
Com_drop_db 0
Com_drop_event 0
Com_drop_function 0
Com_drop_index 0
Com_drop_procedure 0
Com_drop_server 0
Com_drop_table 0
Com_drop_trigger 0
Com_drop_user 0
Com_drop_view 0
Com_empty_query 0
Com_execute_sql 0
Com_flush 0
Com_grant 0
Com_ha_close 0
Com_ha_open 0
Com_ha_read 0
Com_help 0
Com_insert 0
Com_insert_select 0
Com_install_plugin 0
Com_kill 0
Com_load 0
Com_lock_tables 0
Com_optimize 0
Com_preload_keys 0
Com_prepare_sql 0
Com_purge 0
Com_purge_before_date 0
Com_release_savepoint 0
Com_rename_table 0
Com_rename_user 0
Com_repair 0
Com_replace 0
Com_replace_select 0
Com_reset 0
Com_resignal 0
Com_revoke 0
Com_revoke_all 0
Com_rollback 0
Com_rollback_to_savepoint 0
Com_savepoint 0
Com_select 1
Com_set_option 0
Com_signal 0
Com_show_authors 0
Com_show_binlog_events 0
Com_show_binlogs 0
Com_show_charsets 0
Com_show_collations 0
Com_show_contributors 0
Com_show_create_db 0
Com_show_create_event 0
Com_show_create_func 0
Com_show_create_proc 0
Com_show_create_table 0
Com_show_create_trigger 0
Com_show_databases 0
Com_show_engine_logs 0
Com_show_engine_mutex 0
Com_show_engine_status 0
Com_show_events 0
Com_show_errors 0
Com_show_fields 0
Com_show_function_status 0
Com_show_grants 0
Com_show_keys 0
Com_show_master_status 0
Com_show_open_tables 0
Com_show_plugins 0
Com_show_privileges 0
Com_show_procedure_status 0
Com_show_processlist 0
Com_show_profile 0
Com_show_profiles 0
Com_show_relaylog_events 0
Com_show_slave_hosts 0
Com_show_slave_status 0
Com_show_status 1
Com_show_storage_engines 0
Com_show_table_status 0
Com_show_tables 0
Com_show_triggers 0
Com_show_variables 0
Com_show_warnings 0
Com_slave_start 0
Com_slave_stop 0
Com_stmt_close 0
Com_stmt_execute 0
Com_stmt_fetch 0
Com_stmt_prepare 0
Com_stmt_reprepare 0
Com_stmt_reset 0
Com_stmt_send_long_data 0
Com_truncate 0
Com_uninstall_plugin 0
Com_unlock_tables 0
Com_update 0
Com_update_multi 0
Com_xa_commit 0
Com_xa_end 0
Com_xa_prepare 0
Com_xa_recover 0
Com_xa_rollback 0
Com_xa_start 0
Compression OFF
Connections 375
Created_tmp_disk_tables 0
Created_tmp_files 6
Created_tmp_tables 0
Delayed_errors 0
Delayed_insert_threads 0
Delayed_writes 0
Flush_commands 1
Handler_commit 0
Handler_delete 0
Handler_discover 0
Handler_prepare 0
Handler_read_first 0
Handler_read_key 0
Handler_read_last 0
Handler_read_next 0
Handler_read_prev 0
Handler_read_rnd 0
Handler_read_rnd_next 0
Handler_rollback 0
Handler_savepoint 0
Handler_savepoint_rollback 0
Handler_update 0
Handler_write 0
Innodb_buffer_pool_pages_data 584
Innodb_buffer_pool_bytes_data 9568256
Innodb_buffer_pool_pages_dirty 0
Innodb_buffer_pool_bytes_dirty 0
Innodb_buffer_pool_pages_flushed 120
Innodb_buffer_pool_pages_free 7607
Innodb_buffer_pool_pages_misc 0
Innodb_buffer_pool_pages_total 8191
Innodb_buffer_pool_read_ahead_rnd 0
Innodb_buffer_pool_read_ahead 0
Innodb_buffer_pool_read_ahead_evicted 0
Innodb_buffer_pool_read_requests 14912
Innodb_buffer_pool_reads 584
Innodb_buffer_pool_wait_free 0
Innodb_buffer_pool_write_requests 203
Innodb_data_fsyncs 163
Innodb_data_pending_fsyncs 0
Innodb_data_pending_reads 0
Innodb_data_pending_writes 0
Innodb_data_read 11751424
Innodb_data_reads 594
Innodb_data_writes 243
Innodb_data_written 3988480
Innodb_dblwr_pages_written 120
Innodb_dblwr_writes 40
Innodb_have_atomic_builtins ON
Innodb_log_waits 0
Innodb_log_write_requests 28
Innodb_log_writes 41
Innodb_os_log_fsyncs 83
Innodb_os_log_pending_fsyncs 0
Innodb_os_log_pending_writes 0
Innodb_os_log_written 34816
Innodb_page_size 16384
Innodb_pages_created 1
Innodb_pages_read 583
Innodb_pages_written 120
Innodb_row_lock_current_waits 0
Innodb_row_lock_time 0
Innodb_row_lock_time_avg 0
Innodb_row_lock_time_max 0
Innodb_row_lock_waits 0
Innodb_rows_deleted 0
Innodb_rows_inserted 0
Innodb_rows_read 40
Innodb_rows_updated 39
Innodb_truncated_status_writes 0
Key_blocks_not_flushed 0
Key_blocks_unused 13396
Key_blocks_used 0
Key_read_requests 0
Key_reads 0
Key_write_requests 0
Key_writes 0
Last_query_cost 0.000000
Max_used_connections 3
Not_flushed_delayed_rows 0
Open_files 86
Open_streams 0
Open_table_definitions 109
Open_tables 109
Opened_files 439
Opened_table_definitions 0
Opened_tables 0
Performance_schema_cond_classes_lost 0
Performance_schema_cond_instances_lost 0
Performance_schema_file_classes_lost 0
Performance_schema_file_handles_lost 0
Performance_schema_file_instances_lost 0
Performance_schema_locker_lost 0
Performance_schema_mutex_classes_lost 0
Performance_schema_mutex_instances_lost 0
Performance_schema_rwlock_classes_lost 0
Performance_schema_rwlock_instances_lost 0
Performance_schema_table_handles_lost 0
Performance_schema_table_instances_lost 0
Performance_schema_thread_classes_lost 0
Performance_schema_thread_instances_lost 0
Prepared_stmt_count 0
Qcache_free_blocks 1
Qcache_free_memory 16758160
Qcache_hits 0
Qcache_inserts 1
Qcache_lowmem_prunes 0
Qcache_not_cached 419
Qcache_queries_in_cache 1
Qcache_total_blocks 4
Queries 1146
Questions 2
Rpl_status AUTH_MASTER
Select_full_join 0
Select_full_range_join 0
Select_range 0
Select_range_check 0
Select_scan 0
Slave_heartbeat_period 0.000
Slave_open_temp_tables 0
Slave_received_heartbeats 0
Slave_retried_transactions 0
Slave_running OFF
Slow_launch_threads 0
Slow_queries 0
Sort_merge_passes 0
Sort_range 0
Sort_rows 0
Sort_scan 0
Ssl_accept_renegotiates 0
Ssl_accepts 0
Ssl_callback_cache_hits 0
Ssl_cipher
Ssl_cipher_list
Ssl_client_connects 0
Ssl_connect_renegotiates 0
Ssl_ctx_verify_depth 0
Ssl_ctx_verify_mode 0
Ssl_default_timeout 0
Ssl_finished_accepts 0
Ssl_finished_connects 0
Ssl_session_cache_hits 0
Ssl_session_cache_misses 0
Ssl_session_cache_mode NONE
Ssl_session_cache_overflows 0
Ssl_session_cache_size 0
Ssl_session_cache_timeouts 0
Ssl_sessions_reused 0
Ssl_used_session_cache_entries 0
Ssl_verify_depth 0
Ssl_verify_mode 0
Ssl_version
Table_locks_immediate 123
Table_locks_waited 0
Tc_log_max_pages_used 0
Tc_log_page_size 0
Tc_log_page_waits 0
Threads_cached 1
Threads_connected 2
Threads_created 3
Threads_running 1
Uptime 2389
Uptime_since_flush_status 2389
How would one use awk to make this calculation of Queries per second (Queries/Uptime):
如何使用awk进行每秒查询的计算（查询/正常运行时间）：
1146/2389
2389分之1146
And print the result?
并打印结果？
I'm grepping 2 results from a list of results and need to calculate items/second where 302 is the total item count and 503 the total uptimecount.
我从结果列表中得到2个结果，需要计算项目/秒，其中302是项目总数，503是总的uptimecount。
At this moment I'm doing
此刻我正在做
grep -Ew "Queries|Uptime" | awk '{print $2}'
to print out:
打印出来：
302
503
But here i got stuck.
但在这里我被困住了。
2 个解决方案
#1
1
You can use something like:
您可以使用以下内容：
$ awk '/Queries/ {q=$2} /Uptime/ {print q/$2}' file
0.600398
That is: when the line contains the string "Queries", store its value. When it contains "Uptime", print the result of dividing its value by the one stored in queries.
即：当该行包含字符串“Queries”时，存储其值。当它包含“正常运行时间”时，打印将其值除以查询中存储的值的结果。
This assumes the string "Queries" appearing before the string "Uptime".
假设字符串“Queries”出现在字符串“Uptime”之前。
Given your updated input, I see that we need to check if the first field is exactly "Uptime" or "Queries" so that it does not match other lines with this content:
鉴于您的更新输入，我看到我们需要检查第一个字段是“正常运行时间”还是“查询”，以便它与其他行与此内容不匹配：
$ awk '$1 == "Queries" {q=$2} $1=="Uptime" {print q/$2}' file
0.479699
#2
1
I think the following awk one-liner will help you:
我认为以下awk one-liner将帮助您：
kent$ cat f
Queries 302
Uptime 503
LsyHP 13:42:57 /tmp/test
kent$ awk '{a[NR]=$NF}END{printf "%.2f\n",a[NR-1]/a[NR]}' f
0.60
If you want to do together with "grep" function:
如果你想和“grep”功能一起做：
kent$ awk '/Queries/{a=$NF}/Uptime/{b=$NF}END{printf "%.2f\n",a/b}' f
0.60
#1
1
You can use something like:
您可以使用以下内容：
$ awk '/Queries/ {q=$2} /Uptime/ {print q/$2}' file
0.600398
That is: when the line contains the string "Queries", store its value. When it contains "Uptime", print the result of dividing its value by the one stored in queries.
即：当该行包含字符串“Queries”时，存储其值。当它包含“正常运行时间”时，打印将其值除以查询中存储的值的结果。
This assumes the string "Queries" appearing before the string "Uptime".
假设字符串“Queries”出现在字符串“Uptime”之前。
Given your updated input, I see that we need to check if the first field is exactly "Uptime" or "Queries" so that it does not match other lines with this content:
鉴于您的更新输入，我看到我们需要检查第一个字段是“正常运行时间”还是“查询”，以便它与其他行与此内容不匹配：
$ awk '$1 == "Queries" {q=$2} $1=="Uptime" {print q/$2}' file
0.479699
#2
1
I think the following awk one-liner will help you:
我认为以下awk one-liner将帮助您：
kent$ cat f
Queries 302
Uptime 503
LsyHP 13:42:57 /tmp/test
kent$ awk '{a[NR]=$NF}END{printf "%.2f\n",a[NR-1]/a[NR]}' f
0.60
If you want to do together with "grep" function:
如果你想和“grep”功能一起做：
kent$ awk '/Queries/{a=$NF}/Uptime/{b=$NF}END{printf "%.2f\n",a/b}' f
0.60