How to redirect and append both standard output and standard error to a file with Bash

How to redirect and append both standard output and standard error to a file with Bash

bash append stdout io-redirection stderr

bash

Append file contents to the bottom of existing file in Bash [duplicate]

bash sed awk append

bash

Appending a line break to an output file in a shell script

bash shell cygwin append

bash

Append to the top of a large file: bash

bash grep append

bash

write a file, append if it exists otherwise create in bash

bash append echo

bash

bash script to append string to multiple files in same directory

bash append

bash

Append file to file in bash without cat

bash file append

bash

How do I append lines from one file to the end of each line of another file?

bash append line

bash