This question already has answers here:
How do I grab an INI value within a shell script?
(32 answers)
Closed 6 years ago.
This is my file (xyz.properties)
abcd.123=localhost:8180
Now I need this IP address in my shell script
vi create.sh
#!/bin/bash
How do I call abcd.123 from properties file to this shell script
!bin/bash
source = /xyz.properties
${abcd_123}
${"abcd_123"}
${abcd.123}
nothing works
this way is not working and my main idea is to use the variable everywhere
BTW i cannot use abcd_123 in my properties file
as there are so many dependencies on that variable
You can replace the dots and source the modified content:
$ source <(sed 's#\(.*\)\.\(.*\)=#\1_\2=#' xyz.properties)
$ echo $abcd_123
localhost:8180
in your bash script you need to "source" your properties file (you can use the "source" or "." [a dot]):
#!/bin/bash
source yourfile.properties
Edited. Change your names to use an underscore instead, then access them like so:
${"abcd_123"}
Related
This question already has answers here:
How do I run a shell script without using "sh" or "bash" commands?
(13 answers)
Closed 1 year ago.
Issue
I want to run a bash file more easily, I've seen some applications where you only need to type word to execute the script.
Instead of typing ~/folder/file.sh in the terminal,
I only have to type a_word to run the file.
Is this possible with bash?
And also, this is on RPiOS's terminal, not sure if it differs.
Save your file to a location named in PATH. /usr/local/bin/a_word (no .sh) is a great example of such a location. Make sure it has executable permissions and starts with a shebang (like #!/usr/bin/env bash).
When you want to install something just for your own account, it's common practice to create a ~/bin directory and add it to your PATH (as by adding something like PATH=$PATH:$HOME/bin in ~/.bash_profile).
You have to define a so called alias.
Edit the file $HOME/.bashrc and add alias a_word = '$HOME/folder/file.sh', then logout and logon again.
This question already has answers here:
Difference between single and double quotes in Bash
(7 answers)
Closed 3 years ago.
I want to add a line to a file maintaining the exact pattern
Line i want to add:
export PATH=$PATH:$JAVA_HOME/bin
I dont want to add the values of the variables to the file
What I did:
echo "export PATH=$PATH:$JAVA_PATH/bin" | sudo tee -a /home/admin/Vishal/test.sh
My Output:
Contains numerous paths instead of export PATH=$PATH:$JAVA_HOME/bin
The immediate problem is that you need single quotes instead of double. But really, you should not be editing your script file. Instead, make it accept a parameter which tells it whether or not to update the PATH.
case $1 in --update-path) PATH=$PATH:$JAVA_HOME/bin;; esac
If you run /home/admin/Vishal/test.sh --update-path it will add the Java directory; without the option, it won't.
This question already has answers here:
Need bash shell script for reading name value pairs from a file
(8 answers)
Reading key/value parameters from a file into a shell script
(1 answer)
How do I grab an INI value within a shell script?
(32 answers)
*export* all variables from key=value file to shell
(1 answer)
Closed 5 years ago.
I am working in linux and have a config file with a lot of single lines formatted like this:
Variable1=Value1
Variable2=Value2
Variable3=Value3
I need something I can run on command line that will echo the value for the respective variable. I have been playing with sed all day, but having a heck of a time. I'm not sure if that's even the best way. Any help would be super.
$ cat a.sh
Variable1=Value1
Variable2=Value2
Variable3=Value3
$ source a.sh
$ echo "$Variable1"
Value1
Note, source will overwrite the value of Variable1 for the current shell.
Search for the variable name and the equal sign, remove them, and print the result.
$ sed -n '/^Variable1=/{s/^Variable1=//;p}' config.txt
Value1
This question already has answers here:
how to put the result of an echo command into an ansible variable
(2 answers)
Closed 5 years ago.
i want to save the output of a command in a file , i tried to use :
- command: ./script1 >> file.txt 2>&1
but it's give me an empty file.
Is there any other method to save the output of my "script1" in a "file" using ansible 2.0.2 .
thank you in advance .
You need to replace command with shell.
The command module takes the command name followed by a list of space-delimited arguments. The given command will be executed on all selected nodes. It will not be processed through the shell, so variables like $HOME and operations like "<", ">", "|", and "&" will not work (use the shell module if you need these features).
Source: Ansible docs.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
Capturing multiple line output to a bash variable
For example I want to run ls command and take the return list as a value kept in a array in shell script.
Something like
run
#ls
fileA
fileB
fileC
kept this return list in a variable that keeps a array
variable A = ["fileA","fileB","fileC"];
I cannot give the exact notation for code since I do not know how to write shell script. After I learn this, I 'll.
#!/bin/bash
variableA=$(ls)
echo $variableA
That should be your shell script assuming that you have bash
Then all you'd need to do is chmod +x shell_script to make it executable.
If you use ls > contents.file the result of ls is saved to a file called contents.file.
Remember, > rewrites the entire file while >> appends to the last line.
variableA=$(ls)
echo "$variableA"