I have a text file with the content as follows 

SMS,SMS1,20190811,084500,servname,servid,servname1,s1,400,300,300,300,
+300,300
SMS,SMSh,20190811,084500,servname,servid,servname1,s1,700,300,300,300,
+300,300
SMS,SMSH,20190811,084500,servname,servid,servname1,s1,600,300,300,300,
+300,300
SMS,SMSi,20190811,084500,servname,servid,servname1,s1,800,300,300,300,
+300,300
SMS,SMSI,20190811,084500,servname,servid,servname1,s1,500,300,300,300,
+300,300

[download]

I have written the following line of code for case insensitive string comparison 

$$blk_ref = 'SMSblk' if $$blk_ref =~ /SMSi/i || $$blk_ref =~ /SMSI/i |
+| $$blk_ref =~ /SMSh/i || $$blk_ref =~ /SMSH/i || $$blk_ref =~ /SMS1/
+;

[download]

But in the output file, i get the values only for SMSi,SMSh and SMS1.'The values of SMSI and SMSH are not taken.Kindly help to correct my code so that all the values are present in the output file

In reply to Case insensitive string comparison by DAN0207

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