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Published on 2009-05-12T17:54:48Z
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2010/05/20
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What is the best way to determine if a variable in bash contains ""?
I have heard it recommended that I do if [ "x$variable" = "x" ]
Is that the correct way? (there must be something more straightforward)
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as seen on Ask Ubuntu
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When I run a program from the console, e.g.
me@box:~$ firefox
I expect the console to log error messages (I think this is std out or std err?) and other items from the program, firefox in this case.
But today I notice that bash just opens the program and goes to a new prompt, e.g.
me@box:~$…
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as seen on Ask Ubuntu
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I was updating my .bash_profile, and unfortunetly I made a few updates and now I am getting:
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
-bash: tar: command…
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as seen on Ask Ubuntu
- Search for 'Ask Ubuntu'
I was updating my .bash_profile, and unfortunetly I made a few updates and now I am getting:
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
env: bash: No such file or directory
-bash: tar: command…
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as seen on Super User
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ps -e | grep bash
sample output from a linux machine:
1128 pts/14 00:00:00 bash
7491 pts/7 00:00:00 bash
12651 pts/14 00:00:00 bash
16145 pts/2 00:00:00 bash
sample output from a mac machine:
58352 ttys000 0:00.09 login -pfl username /bin/bash -c exec -la bash /bin/bash
58353 ttys000…
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as seen on Ask Ubuntu
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First login process name seems to be set to "-bash", but if I subshell then it becomes "bash". for example:
root@nowere:~# echo $0
-bash
root@nowere:~# bash
root@nowere:~# echo $0
bash
-bash is causing some scripts to fail, such as . /usr/share/debconf/confmodule
exec /usr/share/debconf/frontend…
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as seen on DotNetBlocks
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There are numerous advantages to server scripting languages over client side scripting languages in regards to creating web sites that are more compelling compared to a standard static site. Server side scripts are executed on a web server during the compilation of data to return to a client…
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as seen on Internet.com
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<b>IBM Developerworks:</b> "Why repeat yourself? You can configure Vim’s comprehensive event model to execute time-saving scripts whenever particular editing events—such as loading a file or switching between editor modes—occur."
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as seen on Programmers
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I've read that Lua is often used for embedded scripting and in particular game for scripting. I find it hard to picture how it is used exactly.
Can you describe why and for which features and for which audience it is used?
This questions isn't specifically addressing Lua, but rather any embedded…
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as seen on Stack Overflow
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We have a GUI which runs on ASP.NET 2.0 framework (Client-Server model). From the support perspective how can one find whether the pages which are opening on GUI at any point of time is a server side scripting or Client side scripting.
The reason why I ask this is because I understand that some of…
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as seen on Stack Overflow
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I am writing a simple unix shell script:
#!/bin/bash
# abort the script if a command fails
set -e
# abort the script if an unitialized shell variable is used
set -u
i = 0;
while [$i -l 1]
do
src/meshpro input/martini.off video/noise/image$i…
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