Why does a while loop stop after being suspended?
Why is it that using bash and suspending a while loop, the loop stops after being resumed? Short example below.
shell
Unexpected indentation behaviour when I set the terminal to raw mode – why is this happening?
Based on what I have read, when a terminal is in raw mode, the characters are not processed by the terminal driver, but are sent straight through.
clear out all variables without closing terminal
I want to know how to clear all variables which I defined in command prompt without closing terminal ?
Why does “$(( ~33 ))” produce -34?
NOT x = −x − 1
Portable way to find inode number
At first I used stat -c %i file (to help detect the presence of a jail), which seemed to work on any Linux distribution under the sun. On OS X’ I had to use ls -i file | cut -d ' ' -f 1.
How do I run a command on multiple files
This is pretty basic, I have a folder with several subfolders of JS files and i want to run Google’s Clojure compiler on all of the files in those folders. The command to process a single file is as follows:
grep: input file ‘X’ is also the output
I use ubuntu 14.4, and been attempting to redirect the output of grep command to a file, but I keep getting this error:
History of Bash globbing
Is there a historical reason why Bash “globbing” and regular expressions are not identical? For example, I believe that in Bash [1-2]* matches anything that starts with a 1 or a 2 followed by anything else, while as a regular expression [1-2]* would match only a sequence of 1s and 2s. My Bash scripting and REGEX foo are both pretty weak and I regularly run into problems associated with these differences which made me curious was to why they are different.
Why doesn’t GNU parallel work with “bash -c”?
% echo -e '1n2' | parallel "bash -c 'echo :$1' '' {}" :1 :2 % echo -e '1n2' | parallel bash -c 'echo :$1' '' {} % I’d expect the second line to act the same. Answers: Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help … Read more
Escape sequences with “echo -e” in different shells
I just noticed that it seems like the flag -e does not exist for the echo command in my shell on Linux.
Is this just a messed up setting or is it “normal”?