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Passing argument to alias in bash [duplicate]
... great since you get all the perks that functions give (see completion, traps, bind, etc for the goodies that functions can provide, in the bash manpage).
I hope that helps you out :)
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Filter LogCat to get only the messages from My Application in Android?
I observed that when i use Logcat with Eclipse with ADT for Android, I get messages from many other applications as well. Is there a way to filter this and show only messages from my own application only.
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Thin web server: `start_tcp_server': no acceptor (RuntimeError) after git branch checkout
...ombie?) server (can happen when quitting terminal with server running):
$ ps ax | grep rails
If it returns something like:
33467 s002 S+ 0:00.00 grep rails
33240 s003 S+ 0:15.05 /Users/Arta/.rbenv/versions/1.9.2-p290/bin/ruby script/rails s -p 3000
kill it, and run anew:
$ kill -9 33240
$ rai...
How to show line number when executing bash script
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You mention that you're already using -x. The variable PS4 denotes the value is the prompt printed before the command line is echoed when the -x option is set and defaults to : followed by space.
You can change PS4 to emit the LINENO (The line number in the script or shell funct...
How to profile a bash shell script slow startup?
...bash.bashrc (or wherever you'd like to begin a trace in any Bash script):
PS4='+ $(date "+%s.%N")\011 '
exec 3>&2 2>/tmp/bashstart.$$.log
set -x
add
set +x
exec 2>&3 3>&-
at the end of ~/.bashrc (or at the end of the section of any Bash script you'd like tracing to stop...
How do I measure separate CPU core usage for a process?
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You can use:
mpstat -P ALL 1
It shows how much each core is busy and it updates automatically each second. The output would be something like this (on a quad-core processor):
10:54:41 PM CPU %usr %nice %sys %iowait %irq %s...
Reset C int array to zero : the fastest way?
...ee for floating-point or pointer types.)
– Keith Thompson
Jun 16 '13 at 0:17
3
Adding to @KeithTh...
What text editor is available in Heroku bash shell? [closed]
...l gist into a heroku cli plugin.
Just install:
heroku plugins:install https://github.com/naaman/heroku-vim
And use:
heroku vim
The heroku vim command will drop you into a bash shell with vim installed on your $PATH. All you have to do is retrain your fingers to type heroku vim instead of heroku...
What is the difference between a Docker image and a container?
...with docker images whereas you can see your running containers with docker ps (and you can see all containers with docker ps -a).
So a running instance of an image is a container.
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How can I change the color of my prompt in zsh (different from normal text)?
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Here's an example of how to set a red prompt:
PS1=$'\e[0;31m$ \e[0m'
The magic is the \e[0;31m (turn on red foreground) and \e[0m (turn off character attributes). These are called escape sequences. Different escape sequences give you different results, from absolute cu...