
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 …
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 …
linux - How can I copy the output of a command directly into my ...
2011年2月27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 …
LINUX Shell commands cat and grep - Stack Overflow
2013年6月6日 · cat countryInfo.txt reads the file countryInfo.txt and streams its content to standard output. | connects the output of the left command with the input of the right command …
Convert categorical data in pandas dataframe - Stack Overflow
2015年8月14日 · First, to convert a Categorical column to its numerical codes, you can do this easier with: dataframe['c'].cat.codes. Further, it is possible to select automatically all columns …
How to get .pem file from .key and .crt files? - Stack Overflow
cat otherfilegodaddygivesyou.crt gd_bundle-g2-g1.crt > name.crt Then I used these instructions from Trouble with Google Apps Custom Domain SSL , which were: openssl rsa -in …
Facebook Image URL gets expired - Stack Overflow
2015年5月27日 · I am pulling Facebook posts using facebook-graph API, now the problem is Image gets expired after few days. I have the following URL for a single Image Old Image URL …
bash - What does " 2>&1 " mean? - Stack Overflow
@dbr cmd 2>&1 >>file does not redirect stderr to the file, but cmd >> file 2>&1 does. Order matters. In the first case, stderr is redirected to the stdout of the shell (possibly a tty if the …
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 …
How to get the CUDA version? - Stack Overflow
2012年3月16日 · As Jared mentions in a comment, from the command line: nvcc --version (or /usr/local/cuda/bin/nvcc --version) gives the CUDA compiler version (which matches the toolkit …