Hello, WorldUnescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\(bf|it){ <-- HERE ([^\}]+)}/ at ../tex2txt.pl line 74. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\label{ <-- HERE [^\}]+}/ at ../tex2txt.pl line 87. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\ref{ <-- HERE [^\}]+}/ at ../tex2txt.pl line 89. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/(\\ref{ <-- HERE [^\}]+})/ at ../tex2txt.pl line 90. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\cite{ <-- HERE [^\}]+}/ at ../tex2txt.pl line 94. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/(\\cite{ <-- HERE [^\}]+})/ at ../tex2txt.pl line 95. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\(begin|end){ <-- HERE (enumerate|itemize)}/ at ../tex2txt.pl line 99. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\begin{ <-- HERE eqnarray\*?}/ at ../tex2txt.pl line 114. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\end{ <-- HERE eqnarray\*?}/ at ../tex2txt.pl line 120. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\begin{ <-- HERE figure}/ at ../tex2txt.pl line 128. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\end{ <-- HERE figure}/ at ../tex2txt.pl line 132. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\caption{ <-- HERE ([^\}]+)}/ at ../tex2txt.pl line 133. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\begin{ <-- HERE table}/ at ../tex2txt.pl line 140. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\end{ <-- HERE table}/ at ../tex2txt.pl line 144. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\caption{ <-- HERE ([^\}]+)}/ at ../tex2txt.pl line 145. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\begin{ <-- HERE verbatim}/ at ../tex2txt.pl line 152. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through in regex; marked by <-- HERE in m/\\end{ <-- HERE verbatim}/ at ../tex2txt.pl line 156. Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.32), passed through in regex; marked by <-- HERE in m/\\\w+\*?(\[[^\]]+\])?({ <-- HERE .*})?/ at ../tex2txt.pl line 160. foo sh: 1: ../first.pl: not found