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 )

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.

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 (so the right command can read what the left command prints). grep -v "^#" returns all lines that do not (-v) match the regex ^# (which means: line starts with #).

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 browser window, use: cat file | xclip -selection clipboard Consider creating an alias: alias "c=xclip" alias "v=xclip -o"

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 with a certain dtype in a dataframe using select_dtypes. This way, you can apply above operation on multiple and automatically selected columns.

2020年11月19日 · Facebook Page messenger or Chat is different than Facebook general messenger at least how it handles attachments. Unfortunately Facebook doesn't provide any archiving or backup facility for Busines...

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 privateKey.key -text > private.pem openssl x509 -inform PEM -in www_mydomain_com.crt > public.pem

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

@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 command is entered interactively), and then stdout is directed to the file.

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 version).