How to read from two input files using while loop
I wanted to know if there is any way of reading from two input files in a nested while loop one line at a time. For example, lets say I have two files FileA and FileB.
bash
$! not being set to the PID of a > >(…) process substitution used with an external command
Bash 4.4.19(1)-release
Use & (ampersand) in single line bash loop
I have been using this command successfully, which changes a variable in a config file and then executes a Python script within a loop:
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I know that contents of double quotes are expanded, whereas the contents of single quotes are not, such that
Awesome symbols and characters in a bash prompt
I just ran across a screenshot of someone’s terminal:
Command-line completion from command history
So, I’ve looked at history and at Ctrl+R, but they are not what I thought I knew.
Is there a way that I can type in the beginning of a command, and cycle through the matches in my history with some bash shortcut?
bash directory shortcuts
When I type cd ~foo, I’d like bash to take me to some directory foo as a shortcut for typing the full directory path of foo. and I’d like to be able to cp ~foo/bar.txt ~/bar.txt to copy a file from the /foo/ directory to the home directory… So basically, I want something that works exactly like ~/ does, but where I specify what the directory should be. [I’m sure I should jfgi, but I don’t know what to fg]
Difference between executing multiple commands with && and ;
What’s the difference between executing multiple commands with && and ;? Examples: echo "Hi!" && echo "How are you?" and echo "Hi!"; echo "How are you?" 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 … Read more
In Bash scripting, what’s the meaning of ” $! “?
If I’m assigning a variable with
Variable substitution with an exclamation mark in bash
I have the following lines in my .cfg bash script file