How do file descriptors work?

How do file descriptors work?

bash shell stdout stdin file-descriptor

shell

How to redirect an output file descriptor of a subshell to an input file descriptor in the parent shell?

bash shell file-descriptor

shell

What does the FD column of pipes listed by lsof mean?

linux shell command file-descriptor lsof

shell

Zsh pipe all output to command

bash shell zsh file-descriptor

shell

sh: How do I avoid clobbering numbered file descriptors?

shell unix redirect sh file-descriptor

shell

Write to file descriptor 3 without writing to disk?

bash shell file-descriptor

shell

exec n<&m versus exec n>&m -- based on Sobell's Linux book

linux bash shell unix file-descriptor

shell

Nested while read loops with fd

bash shell loops file-descriptor io-redirection

shell

Could an existing fd always be duplicated both as input and output?

bash shell zsh ksh file-descriptor

shell

MSYS shell keeping script file open, preventing modifications

windows shell sh file-descriptor msys

shell

Bash - send all output to a log file, BUT show errors

bash shell unix file-descriptor io-redirection

shell

Return file descriptor from Bash function

bash shell file-descriptor

shell