I have to compare details line by line in two log files having certain keyword "mti_clk_chk". Till now I'm able to parse it line by line with required keyword from both files into a third file. Now I want to compare the data present after the keyword following colon(:) and in output file I have to print the mismatched lines from first data-set on comparing it with second data-set and number of lines in second data set that are not present in first data-set. Data after parsing two log files is given below. Please help me out how to compare details provided in each line between two set of data. 
open(FILE, "<x.log");
my @array = <FILE>;
close(FILE);

open(FILE, "<y.log");
my @array1 = <FILE>;
close(FILE);

open(FILE, ">>file.txt");
my @array2 = <FILE>;
foreach $_ (@array & @array1) {
         @array2 = grep {$_ =~ "mti_clk_chk:"} (@array);
                  print FILE "@array2";
          print FILE "\n \n \n";
                #  close(FILE);

     @array2 = grep {$_ =~ "mti_clk_chk:"} (@array1);
                  print FILE "@array2";
                  close(FILE);
exit;
}

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Sample data in file.txt after parsing two input logs (x.log and y.log) ****************************************** 
INFO @576892 mti_clk_chk: run_stimulus called; T=576892
INFO @1102266 PHResourceLayer_Z4: mti_clk_chk:################ start o
+f test ################ ; T=1102266
INFO @1102334 PHResourceLayer_Z4: mti_clk_chk:Checking the period of M
+TI, MTI10 clk from SV; T=1102334
INFO @1102372 mti_clk_chk:  Checking period of MTI CLk; T=1102372
INFO @1102377 mti_clk_chk: Period value of MTI Clock: 3.125000 ns; T=1
+102377
INFO @1102377 mti_clk_chk: MTI Clock is being generated correctly ; T=
+1102377
INFO @1102377 mti_clk_chk:  Checking period of MTI10 CLk; T=1102377
INFO @1102418 mti_clk_chk: Period value of MTI10 Clock: 31.250000 ns; 
+T=1102418
INFO @1102418 mti_clk_chk: MTI10 Clock is being generated correctly ; 
+T=1102418
INFO @1102717 PHResourceLayer_Z4: mti_clk_chk: All clock period Checki
+ng done; T=1102717
INFO @1148661 mti_clk_chk: C-Code exit execution. code=<aa>; T=1148661
INFO @1148661 mti_clk_chk: ************************  SV END***********
+********* ; T=1148661



UVM_INFO @0 reporter [testbench.top_level_module.\mti_clk_chk::main ]:
+ MTI_CLK_CHK_STIM Started .....; T=0
UVM_INFO @0 reporter [testbench.top_level_module.\mti_clk_chk::main ]:
+ run_stimulus called; T=0
UVM_INFO @1092507 reporter [Z4_COREA]: mti_clk_chk: ################ s
+tart of test ################ ; T=1092507
UVM_INFO @1092563 reporter [Z4_COREA]: mti_clk_chk: Checking the perio
+d of MTI, MTI10 clk from SV; T=1092563
UVM_INFO @1092598 reporter [testbench.top_level_module.\mti_clk_chk::m
+ain ]:  Checking period of MTI CLk; T=1092598
UVM_INFO @1092605 /proj/rru2_verif/usr/Tilak/SV_UVM/testbench/data_ipd
+ss/v_ms_mti_stim_vip/testbench/classes_v/mti_clk_chk.sv(147) uvm_test
+_top.default_env.default_sequencer[100]@@mti_clk_chk [mti_clk_chk:INF
+O]: Period value of MTI Clock: 3.125000 ns; T=1092605
UVM_INFO @1092605 reporter [testbench.top_level_module.\mti_clk_chk::m
+ain ]: MTI Clock is being generated correctly ; T=1092605
UVM_INFO @1092605 reporter [testbench.top_level_module.\mti_clk_chk::m
+ain ]:  Checking period of MTI10 CLk; T=1092605
UVM_INFO @1092655 /proj/rru2_verif/usr/Tilak/SV_UVM/testbench/data_ipd
+ss/v_ms_mti_stim_vip/testbench/classes_v/mti_clk_chk.sv(165) uvm_test
+_top.default_env.default_sequencer[100]@@mti_clk_chk [mti_clk_chk:INF
+O]: Period value of MTI10 Clock: 31.250000 ns; T=1092655
UVM_INFO @1092655 reporter [testbench.top_level_module.\mti_clk_chk::m
+ain ]: MTI10 Clock is being generated correctly ; T=1092655
UVM_INFO @1092850 reporter [Z4_COREA]: mti_clk_chk:  All clock period 
+Checking done; T=1092850
UVM_INFO @1092886 /proj/rru2_verif/usr/Tilak/SV_UVM/testbench/data_ipd
+ss/v_ms_mti_stim_vip/testbench/classes_v/mti_clk_chk.sv(186) uvm_test
+_top.default_env.default_sequencer[100]@@mti_clk_chk [mti_clk_chk:INF
+O]: ************************  SV END******************** ; T=1092886

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In reply to Compare two log files line by line containing a keyword by rahu_6697

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