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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:
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
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 id_rsa pub OR id_dsa pub are RSA public keys, (the private key located on the client machine) the primary key for example can be used to enable cloning project from remote repository securely
Bash: redirect `cat` to file without newline - Stack Overflow cat file1 | tr -d '\n' but that discards all the newlines in the file, also not desirable So, to repeat my question: How do I cat file1 into the new file and add user input without adding the newline between them? (cat is not a requirement, but I am not familiar with printf, so if that's the solution then please elaborate on its use)
How to retrieve a single file from a specific revision in Git? Using low-level git plumbing commands Before git1 5 x, this was done with some plumbing: git ls-tree <rev> show a list of one or more 'blob' objects within a commit git cat-file blob <file-SHA1> cat a file as it has been committed within a specific revision (similar to svn cat) use git ls-tree to retrieve the value of a given file-sha1
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