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LW #7

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LW #7

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10 changes: 9 additions & 1 deletion README.md
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Original file line number Diff line number Diff line change
@@ -1,3 +1,11 @@
# 02022021

sed służy do zamiany wzorca tekstowego występującego w pliku(lub strumienia wejścia) na inny na przykład polecenie
echo 'aaaaaaaaabbbbccc'| sed 's/b/c/'
wypisuje aaaaaaaaacbbbccc
z kolei polecenie
echo 'aaaaaaaaabbbbccc'| sed 's/b/c/g'
wypisuje
aaaaaaaaaccccccc
z kolei jeżeli plik1 to napis aaaaaaaaabbbbccc to wykonanie
sed -i 's/b/c/' plik1 prowadzi do nadpisania pliku1 jako napisu aaaaaaaaacbbbccc
## To jest miejsce na Twoją reklamę