Piping search term (not filename) to grep
I want to pick out certain lines containing a given number from a file.
The file I want to search is called os_clusters/piRNA_clusters.bed.
bash
Why doesn’t systemctl {restart,status} sshd; work?
The output of the above command when passed through echo is:
Behaviour of bash command substitution with command from string in variable
There are seven kinds of expansion … The order of expansions is: brace expansion; tilde expansion, parameter and variable expansion, arithmetic expansion, and command substitution (done in a left-to-right fashion); word splitting; and filename expansion
What can I do if bash stops echoing?
One of the applications I use at work sometimes screws with my bash and so I don’t see my own input anymore. I.e.
how to understand the output of “echo $-“?
How to understand the output of echo $-? It looks like some kind of flag characters. I can’t get a clue by googling.
Batch renaming files with pattern
I have some files named like these:
Resolve nested aliases to their source commands
I’ve made several aliases for my convenience.But now I need to be helpful by sending a useful command and it is full of aliases.I’ve tried doing type u but all it returns is
Why (…) doesn’t spawn a new child process when run in background?
After running the command
How to invoke a shell built-in explicitly?
I want to customize the functionality of cd command as per my needs.