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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:
How to append output to the end of a text file - Stack Overflow You can use the >> operator This will append data from a command to the end of a text file To test this try running: echo "Hi this is a test" >> textfile txt Do this a couple of times and then run: cat textfile txt You'll see your text has been appended several times to the textfile txt file
linux - Retrieve last 100 lines logs - Stack Overflow 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
How to get the CUDA version? - Stack Overflow Is there any quick command or script to check for the version of CUDA installed? I found the manual of 4 0 under the installation directory but I'm not sure whether it is of the actual installed v
How does an SSL certificate chain bundle work? - Stack Overflow The original order is in fact backwards Certs should be followed by the issuing cert until the last cert is issued by a known root per IETF's RFC 5246 Section 7 4 2 This is a sequence (chain) of certificates The sender's certificate MUST come first in the list Each following certificate MUST directly certify the one preceding it See also SSL: error:0B080074:x509 certificate routines:X509
Encode to Base64 a specific file by Windows Command Line I need to use a command line on Windows OS to generate the base64 data of a specific file on the screen (without generating a file) I have see that on Unix system is sufficient to use cat lt;file
No such file or directory but it exists - Stack Overflow I think that something was wrong with the file what I've done: open a ssh session to the server cat filename copy the output to the clipboard rm filename touch filename vi filename i for insert mode paste the content from the clipboard ESC to end insert mode :wq! This worked for me
bash - What does 2 gt; 1 mean? - Stack Overflow To combine stderr and stdout into the stdout stream, we append this to a command: 2 gt; amp;1 For example, the following command shows the first few errors from compiling main cpp: g++ main cpp 2