Answer / ch.venkatesh

set var "ccccccccaaabbbbaaaabbinformationabcaaaaaaabbbbbbbccbb"
#set var1 [regexp "information" $var a]
#puts $a
puts [string trim $var "abc"]

Answer / indu sharma

set a "ccccccccaaabbbbaaaabbinformationabcaaaaaabbbbbbbccbb"
set b [strip $a "cba"]
puts $b

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