
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 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.
git - How do I access my SSH public key? - Stack Overflow
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 all your ssh certificates
selenium - How facebook change CDN url onclick on Facebook …
Nov 19, 2020 · 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...
node.js - NPM self_signed_cert_in_chain - Stack Overflow
cat cert1.pem cert2.pem > cert_combined.pem Then make sure to point the right .pem file in your .npmrc. npm config set cafile /path/to/cert_combined.pem Forget the solutions other people mention like ca[]="..." and NODE_EXTRA_CA_CERTS. This solution is tested and verified within a company that uses multiple Authority Root certificates using ...
How to get the CUDA version? - Stack Overflow
Mar 16, 2012 · 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).
Looping through the content of a file in Bash - Stack Overflow
Oct 6, 2009 · $ cat /tmp/test.txt Line 1 Line 2 has leading space Line 3 followed by blank line Line 5 (follows a blank line) and has trailing space Line 6 has no ending CR There are four elements that will alter the meaning of the file output read by many Bash solutions:
python - how do I remove rows with duplicate values of columns …
Jun 16, 2018 · Column1 Column2 Column3 0 cat 1 C 1 dog 1 A 2 cat 1 B I want to identify that cat and bat are same values which have been repeated and hence want to remove one record and preserve only the first record. The resulting data frame should only have.
How can I see the command history across all PowerShell sessions …
May 22, 2017 · Try cat (Get-PSReadlineOption).HistorySavePath to list the history in PowerShell. Share. Improve this answer.
Decoding facebook's blob video url - Stack Overflow
Jan 16, 2020 · I found blob:https://www.facebook.com/c7e5a634-2343-4464-a03e-4a1987301ca1 video source on Facebook's private group and I really can't download the video by entering ...