Why is I/O uninterruptible?
What is the rationale behind making I/O uninterruptible? What would be the negative consequences if a process handling I/O were allowed to handle a signal?
Unix & Linux
Why doesn’t grep using pipe work here?
I have the following command:
How to determine callee function name in a script
To make it short, doing something like:
How to escape a single quote?
end the single-quoted string, add escaped (either by backslash or double quotes) single quote, and immediately start the following part of your string:
Why is $ the default symbol for a user shell and # the default symbol for a root shell?
Operating a standard bash shell on a server, the PS1 prompt defaults to ending in a $ for non-root users, and # for root.
Why isn’t there any shell command to create files?
Attention please: I am not asking how to make a file from the command line! I have been using touch for making files for years without paying attention that its main purpose is something else. If one wants to create a file from command line there are so many possibilities: touch foo.bar > foo.bar cat … Read more
Why is the ‘if [ $1=”1″ ]’ branch always selected even if $1 is not 1?
I have a shell script named ‘teleport.sh’ like this:
ss – linux socket statistics utility output format
When using ss with -p option, user/pid/fd column jumps underneath the particular line. For instance this is it what I’m actually seeing:
What is the difference between JAVA_HOME and update-alternatives?
I have been trying to figure out the best way to run OpenJDK Java Runtime as default Java for my Fedora box and use Oracle JDK 6 for Android development namely for running Android SDK Manager, Android Studio and Eclipse from Android Bundle.
Is there a way to use curl interactively? Or is there an interactive curl/wget shell?
Imagine something like this: