Why doesn't grep give the matching line? -

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i've noticed that

grep -rni 'a2}' *

does not give all documents have string a2} matching line. why case?

i've tried create minimal example, when create new file , paste content, fails. i've uploaded file git repository. perhaps it's encoding problem.

the content of file is:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% \chapter{kv-diagramme} \label{chap:a2} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%   \pstexabbildungohnecaption{figures/a2-1} %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%  %%% local variables: %%% mode: latex %%% tex-master: "skript" %%% end:

the result of grep -rni 'a2}' * is

moose@pc08 ~/downloads/algorithms/grep $ grep -rni "a2}" * %%% end:master: "skript"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

but expected

moose@pc08 ~/downloads/algorithms/grep $ grep -rni "a2}" * \label{chap:a2}

why result?

the file has cr line terminators looks a single-line file:

#> file anhang-2.tex anhang-2.tex: latex document, ascii text, cr line terminators

convert linux format:

#>  mac2unix anhang-2.tex mac2unix: converting file anhang-2.tex unix format ... #>  grep -rni 'a2}' anhang-2.tex  3:\label{chap:a2}

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