{ } –Command combination operator example related

knowledge representation

$ 4.2.29 6 333---> ls fell
ls: cannot access fell: No such file or directory
$ 4.2.29 7 334---> cat fell || "echo no such file" ; touch fell
cat: fell: No such file or directory
bash: echo no such file: command not found
$ 4.2.29 8 335---> ls fell
fell
$ 4.2.29 9 336---> rm fell
$ 4.2.29 10 337---> ls fell
ls: cannot access fell: No such file or directory
$ 4.2.29 11 338---> cat fell || echo "no such file" ; touch fell
cat: fell: No such file or directory
no such file
$ 4.2.29 12 339---> ls fell
fell
$ 4.2.29 13 340---> rm fell
$ 4.2.29 14 341---> > fell
$ 4.2.29 15 342---> cat fell || echo "no such file" ; echo hello
hello
$ 4.2.29 16 343---> rm fell
$ 4.2.29 17 344---> cat fell || echo "no such file" ; touch fell
cat: fell: No such file or directory
no such file
$ 4.2.29 18 345---> ls tell
ls: cannot access tell: No such file or directory
$ 4.2.29 19 346---> ls fell
fell
$ 4.2.29 20 347---> 

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