From the bash manual:
A single quote may not occur between single quotes, even when preceded by a backslash.
Hence - my previous suggestion is invalid - there is no "escaping" inside a single-quote.

Here is a shell trick to try: 

 '"'"'

[download]
Replace all perl-directed single quotes with that, and it should work.

Extremely ugly, though. Here is how it works:
It starts in single quotes, and which you want a single quote you come out, go into double quotation to quote a single quote, then come out of double quotation, to go back into single quotes again.

Using this trick, your command passes the shell's syntax: 

 perl -pi -e 's#\Q(.*)\$/'"'"',\$lines,\$matches))10.(.*)\$/'"'"',\$li
+nes,\$matches))(.*)\$/'"'"',\$lines,\$matches))# #gi' result.txt > re
+sult1.txt

-- Output (from perl - bash is happy!!!) --
Can't open result.txt: No such file or directory.

[download]
Update: I just noticed that my shell trick is identical to ikegami's (++) last example.

     Have you been high today? I see the nuns are gay! My brother yelled to me...I love you inside Ed - Benny Lava, by Buffalax

In reply to Re^3: Delete a line from the file by NetWallah
in thread Delete a line from the file by ajd335

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