linux - How does "cat << EOF" work in bash? - Stack Overflow
网页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: 1. Assign multi-line string to a shell variable $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo='baz' EOF )
unix - How to pipe list of files returned by find command to cat to ...
网页2009年5月14日 · There are a few ways to pass the list of files returned by the find command to the cat command, though technically not all use piping, and none actually pipe directly to cat. The simplest is to use backticks (`): cat `find [whatever]` This takes the output of find and effectively places it on the command line of cat.
What is the difference between cat and print? - Stack Overflow
网页2015年8月6日 · cat is valid only for atomic types (logical, integer, real, complex, character) and names. It means you cannot call cat on a non-empty list or any type of object.
python - `stack ()` vs `cat ()` in PyTorch - Stack Overflow
网页2022年4月1日 · The original answer lacks a good example that is self-contained so here it goes: import torch # stack vs cat # cat "extends" a list in the given dimension e.g. adds more rows or columns x = torch.randn(2, 3) print(f'{x.size()}') # add more rows (thus increasing the dimensionality of the column space to 2 -> 6) xnew_from_cat = torch.cat((x, x, x), 0) print(f'{xnew_from_cat.size()}') # add more ...
Reproduce the Unix cat command in Python - Stack Overflow
网页$ python cat.py command.info fort.13 > command.fort.13 Or to allow arbitrary large lines:
What does `cat-file` stand for in git? - Stack Overflow
网页2016年7月4日 · The main difference between cat and Git's cat-file is that it only displays a single file (hence the -file part). Git's cat-file doesn't really stand for "concatenate"; it simply is a reference to the behavior of the cat command. git-cat-file - Provide content or type and size information for repository objects
Can linux cat command be used for writing text to file?
网页cat "Some text here." > myfile.txt Possible? Such that the contents of myfile.txt would now be overwritten to: Some text here. This doesn't work for me, but also doesn't throw any errors. Specifically interested in a cat-based solution (not vim/vi/emacs, etc.). All examples online show cat used in conjunction with file inputs, not raw text...
cat - How to display contents of all files under a directory on the ...
网页2014年1月22日 · If it's just one level of subdirectory, use cat * */* Otherwise, find . -type f -exec cat {} \; which means run the find command, to search the current directory (.) for all ordinary files (-type f). For each file found, run the application (-exec) cat, with the current file name as a parameter (the {} is a placeholder for the filename).
Linux command (like cat) to read a specified quantity of characters
网页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 want something that would return the first 5 characters, which would be "hello". thanks
How do I read the first line of a file using cat? - Stack Overflow
网页2011年5月24日 · I'm surprised that this question has been around as long as it has, and nobody has provided the pre-mapfile built-in approach yet.