
linux - How does "cat << 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 …
What is the difference between cat and print? - Stack Overflow
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 …
python - `stack ()` vs `cat ()` in PyTorch - Stack Overflow
Apr 1, 2022 · 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 …
How to cat <<EOF >> a file containing code? - Stack Overflow
1 cat with <<EOF>> will create or append the content to the existing file, won't overwrite. whereas cat with <<EOF> will create or overwrite the content.
unix - How to pipe list of files returned by find command to cat to ...
May 14, 2009 · 46 There are a few ways to pass the list of files returned by the find command to the cat command, though technically not all use piping, and none actually pipe directly to cat. …
What does `cat-file` stand for in git? - Stack Overflow
Jul 4, 2016 · While cat does stand for "concatenate", what it actually does is simply display one or multiple files, in order of their appearance in the command line arguments to cat. The common …
LINUX Shell commands cat and grep - Stack Overflow
Jun 6, 2013 · cat countryInfo.txt | grep -v "^#" >countryInfo-n.txt After some research i found that cat is for concatenation and grep is for regular exp search (don't know if i am right) but what …
How do I read the first line of a file using cat? - Stack Overflow
May 24, 2011 · How do I read the first line of a file using cat? Asked 14 years, 5 months ago Modified 5 years ago Viewed 412k times
unix - difference between grep Vs cat and grep - Stack Overflow
Nov 22, 2012 · 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 …
Linux command (like cat) to read a specified quantity of characters
Is there a command like cat in linux which can return a specified quantity of characters from a file? e.g., I have a text file like: Hello world this is the second line this is the third line And I