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Unix tools
qrcode tool
json ser
image trans
stronger AES En-/Decrypt
rpn calc
froga
schnapsen 66
Unix cmd tools
fortune(6)
Hex Dump od(1)
basic calculator bc(1)
41
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41
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21
unix cmd line app interfaces
fortune(6)
hex dump od(1)
basic calculator bc(1)
netstat(8)
lsof(8)