Efficiently remove file(s) from large .tgz
Assume i have an gzip compressed tar-ball compressedArchive.tgz (+100 files, totaling +5gb).
Unix & Linux
How can I filter the contents of a tar file, producing another tar file in the pipe?
Consider a single tar file from an external system which contains some directories with various attributes which I want to retain such as permissions, mtimes, etc. How can I easily take a subset of these files as a regular user (not root)?
Shell namespaces
Is there a way to source a shell script into a namespace, preferably a bash shell script but I would look into other shells if they had this feature and bash didn’t.
Bash – Continuous String Manipulation
#!/bin/bash FILE="$(basename "$1")" FILE="${FILE/%.jpeg/.jpg}" Is there anyway to glue these two lines together into a one-liner? Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave … Read more
Named pipes, file descriptors and EOF
Two windows, same user, with bash prompts. In window-1 type:
What is the purpose of abstractions, session, session leader and process groups?
I understand from Informit article that sessions and process groups are used to terminate descendant processes on exit and send signals to related processes with job control.
Assignments are like commands with an exit status except when there’s command substitution?
See the following examples and their outputs in POSIX shells:
how can I rename multiple files by inserting a character?
I have many files of the form
Reusing pipe data for different commands
I would like to use the same pipe for different applications, like in:
How can I make a special file that executes code when read from
Most files on a Linux system are normal files, i.e. they are saved on disk and reading from them just reads from a specified chunk of memory on the disk. How can I make something that behaves like a file in terms of being able to read from it as one would a normal file, … Read more