
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 )
Can linux cat command be used for writing text to file?
cat "Some text here." > myfile.txt Possible? Such that the contents of myfile.txt would now be overwritten to: Some text here. This doesn't work for me, but also doesn't throw any errors. Specifically interested in a cat-based solution (not vim/vi/emacs, etc.). All examples online show cat used in conjunction with file inputs, not raw text...
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.
How to Install Driver with a cat file? - Stack Overflow
Apr 12, 2011 · It handles exactly this kind of work. Just copy all your driver relevant files(*.inf, *.cat, *.sys) to a directory on the target computer and use PnPUtil -i -a <InfName>.inf. Note: You will need to be in an administrator context to successfully use this tool.
LINUX Shell commands cat and grep - Stack Overflow
Jun 6, 2013 · 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 #).
linux - How can I copy the output of a command directly into my ...
Feb 27, 2011 · 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 …
How do I read the first line of a file using cat? - Stack Overflow
May 24, 2011 · +1. you only need the head not the whole cat :P (the command tail is part of the bash pun too) – SparK.
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 privateKey.key -text > private.pem openssl x509 -inform PEM -in www_mydomain_com.crt > public.pem
"No such file or directory" but it exists - Stack Overflow
Oct 16, 2010 · $ cat deluge-gtk.lock cat: deluge-gtk.lock: No such file or directory $ file deluge-gtk.lock deluge-gtk ...
'super' object has no attribute '__sklearn_tags__'
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