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 …
Can linux cat command be used for writing text to file?
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. …
Is there replacement for cat on Windows - Stack Overflow
2008年9月13日 · Usage: cat file1 file2 file3 file4 -o output.txt -o | Specifies the next arg is the output, we must use this rather than ">>" to preserve the line endings I call it sharp-cat as its …
How do I read the first line of a file using cat? - Stack Overflow
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.
linux - How can I copy the output of a command directly into my ...
2017年5月25日 · cat file | xclip. Paste the text you just copied into a X application: xclip -o. To paste somewhere else other than an X application, such as a text area of a web page in a …
How to open a "-" dashed filename using terminal? - Stack Overflow
2017年2月12日 · This type of approach has a lot of misunderstanding because using -as an argument refers to STDIN/STDOUT i.e dev/stdin or dev/stdout.So if you want to open this type …
linux - Retrieve last 100 lines logs - Stack Overflow
2018年8月6日 · You can simply use the following command:-tail -NUMBER_OF_LINES FILE_NAME. e.g tail -100 test.log. will fetch the last 100 lines from test.log
How does an SSL certificate chain bundle work? - Stack Overflow
Unix: cat cert2.pem cert1.pem root.pem > cert2-chain.pem Windows: copy /A cert1.pem+cert1.pem+root.pem cert2-chain.pem /A 2.2 Run this command. openssl verify …
git - How do I access my SSH public key? - Stack Overflow
2010年9月30日 · On terminal cat ~/.ssh/id_rsa.pub. explanation. cat is a standard Unix utility that reads files and prints output ~ Is your Home User path /.ssh - your hidden directory contains …
"No such file or directory" but it exists - Stack Overflow
2010年10月16日 · $ cat deluge-gtk.lock cat: deluge-gtk.lock: No such file or directory $ file deluge-gtk.lock deluge-gtk ...