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linux - How does cat lt; lt; EOF work in bash? - Stack Overflow The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg when assigning multi-line string to a shell variable, file or a pipe Examples of cat <<EOF syntax usage in Bash:
What does the cat command in Powershell mean? cat is a synonym for the Get-Content command, which simply reads the content of document referenced by the passed parameter and outputs to the standard output the contents of it
What is the difference between cat and print? - Stack Overflow 58 cat is valid only for atomic types (logical, integer, real, complex, character) and names It means you cannot call cat on a non-empty list or any type of object In practice it simply converts arguments to characters and concatenates so you can think of something like as character() %>% paste()
linux - Retrieve last 100 lines logs - Stack Overflow I need to retrieve last 100 lines of logs from the log file I tried the sed command sed -n -e '100,$p' logfilename Please let me know how can I change this command
What does cat - mean? Linux operators - Stack Overflow If cat - doesn't stop it's because the symbol "-" is for parameter And you run cat with no parameter Actually, it didn't run indefinitely; the shell waits for you to enter the end of the command cat is a command that simply reads files In your example, it will read your file fruits And the pipe | means the output of cat will be the input of your grep
python - `stack ()` vs `cat ()` in PyTorch - Stack Overflow xnew_from_cat = torch cat((x, x, x), 1) print(f'{xnew_from_cat size()}') print() # stack serves the same role as append in lists i e it doesn't change the original # vector space but instead adds a new index to the new tensor, so you retain the ability # get the original tensor you added to the list by indexing in the new dimension
unix - difference between grep Vs cat and grep - Stack Overflow First one: cat filename | grep regex Normally cat opens file and prints its contents line by line to stdout But here it outputs its content to pipe'|' After that grep reads from pipe (it takes pipe as stdin) then if matches regex prints line to stdout But here there is a detail grep is opened in new shell process so pipe forwards its input as output to new shell process Second one: grep