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:

Aug 6, 2015 · 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().

Aug 6, 2018 · 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 ...

cat <<'EOF' >> brightup.sh or equivalently backslash-escape it: cat <<\EOF >>brightup.sh Without quoting, the here document will undergo variable substitution, backticks will be evaluated, etc, like you discovered. If you need to expand some, but not all, values, you need to individually escape the ones you want to prevent. cat <<EOF >>brightup.sh

May 25, 2017 · How can I pipe the output of a command into my clipboard and paste it back when using a terminal? For instance: cat file | clipboard

Jan 22, 2014 · cat file1 file2 file3 But in a directory if there are more than 20 files and I want content of all those files to be displayed on the screen without using the cat command as above by mentioning the names of all files.

Mar 10, 2021 · 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.

Feb 27, 2021 · 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.

I'm trying to use something in bash to show me the line endings in a file printed rather than interpreted. The file is a dump from SSIS/SQL Server being read in by a Linux machine for processing. Are

Is there replacement for cat on Windows [closed] Asked 16 years, 10 months ago Modified 4 months ago Viewed 550k times