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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: 1 Assign multi-line string to a shell variable $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo='baz' EOF )
Is there replacement for cat on Windows - Stack Overflow Windows type command works similarly to UNIX cat Example 1: type file1 file2 > file3 is equivalent of: cat file1 file2 > file3 Example 2: type * vcf > all_in_one vcf This command will merge all the vcards into one
linux - How can I copy the output of a command directly into my . . . 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 browser window, use: cat file | xclip -selection clipboard Consider creating an alias: alias "c=xclip" alias "v=xclip -o"
How to append output to the end of a text file - Stack Overflow printf "hello world" >> read txt cat read txt hello world However if you were to replace printf with echo in this example, echo would treat \n as a string, thus ignoring the intent printf "hello\nworld" >> read txt cat read txt hello world
Encode to Base64 a specific file by Windows Command Line cat <file_name>| base64 to obtain the file's contents encoded as base64 On Windows I'm not able to have the same result I have found this solution: certutil -encode -f <file_name> tmp b64 findstr v c:- tmp b64 del tmp b64 But this needs the system to generate a temporary file and so, at the end, go to destroy it
How to obtain the number of CPUs cores in Linux from the command line? $ cat proc cpuinfo | awk ' ^processor {print $3}' | tail -n 1 NOTE: Since proc cpuinfo holds a number of entries corresponding to the cpus count, a processor field initial value is 0, don't forget to increment the value of the last cpu core by 1
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 -CAfile cert2-chain pem cert3 pem 2 3 If this is OK, proceed to the next one (cert4 pem in this case) Thus for the first round through the commands would be
Copy file contents to the clipboard in Linux terminal If you're copying from terminal (like if you use the cat command already posted), highlight the key details and use Ctrl + Shift + C This should put it on your clipboard You can also right click and select 'copy' from terminal