Linux String Substitute sed failed

I have completed the task and also when I completed the task got output as 66 rows changed.
I checked String got changed successfully to Submarine in .xml file

U have to mention more details for your issue

@Avaya007

Do you have any screenshots?

Mine was marked fail also after changing all string Text to Submarine
root@stbkp01 clint]# sed ‘s/Text/Submarine/g’ /root/nautilus.xml

<?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description <?xml version="1.0"?> Menon, Vardaan Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description An, Darshi Software Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Jose Almaraz Application Development Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description S, Biswa SOA Architecture Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Mel Jones BT Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description Solo, Han Enterprise Apps Sample Random About 44.95 String Submarine 2000-10-01 Unknown Description [root@stbkp01 clint]# [root@stbkp01 clint]# thor@jump_host /$ thor@jump_host /$

@eayo, you missed the -i flag. Without it sed just prints the modifications to stdout, but does not apply them to the files.

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