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How to save variables between runs of a script?
@Rodrigo I’ve used a similar approach before for “saving” values between runs of a script with some success. Just one thing to keep in mind, is that if multiple instances of the scripts run, things might get dicey. But if you save them in bash assignment form, you can just source the file to import the variables– FatalErrorMar 19 ’12 at 18:22
How to pass variables from one script to another in Bash?
Source the 2nd script, i.e. . test2.shand it will run in the same shell. This would let you share more complex variables like arrays easily, but also means that the other script could modify variables in the source shell. UPDATE: To use exportto set an environment variable, you can either use an existing variable:
What can you do with a bash script?
This works equally well in bash. It also makes it easy to share more complex data which you could not express as an environment variable (at least without some heavy lifting on your part), like arrays or associative arrays. Share
How to compare variables in a shell script?
It should then lower the case and put it in variable S, and search for $S in the file Jump=”/home/Lists/srv”. If it finds there it should grep the first column and put it in another variable J1. Now, if value of S and J1 are similar, then it should ssh to $S else (1st) it should first ssh to $J1 and then ssh to $S.
How to set an environment variable in Bash?
To use exportto set an environment variable, you can either use an existing variable: A=10 # export A This ought to work in both bashand sh. bashalso allows it to be combined like so: export A=10 This also works in mysh(which happens to be bash, you can use echo $SHELLto check).
How to capture the output of a script?
I’d like to capture the whole output to a file from the script itself: basically I’m trying to avoid the need to call ./myscript.sh | tee file.txt for non-relevant-here reasons. I also require the output to be printed on my shell while the script is running.
Can a script be run on more than one server?
Looking at the request to run and save output separately for each server using CMS server was not a complete solution, but if your goal is to only run the script against multiple servers you can refer to these tips: Tip1 and Tip2. This problem can be solved a few different ways.
What is the output of the A.Sh script?
$ ./a.sh Script started, output file is log.txt teste Script done, output file is log.txt $ cat log.txt Script started on Fri Feb 16 17:57:26 2018 command: /bin/bash -c ./a.sh teste Script done on Fri Feb 16 17:57:26 2018 You want to use tee. This creates a file out.txt with the output from the command and prints it to the screen.