Being a “code daily” type of open-source SysAdmin\/Operations Manager, I’ll post here a ‘tricks & tips’ that I’ve found useful when using and programming in the Bash Shell.<\/p>\n
This one notes how to replace a Bash variable name with another variable name. I know that the best practice here is to use one of the many forms of Arrays that Bash provides, but this is applicable to a situation where an Array is not available, and there’s a number of Bash variables containing data that are able to have their variable names computed\/calculated. eg: getting passed a shell or process’ environment to a Bash script.<\/p>\n
For example\/to demonstrate:<\/p>\n
Yields results of:<\/p>\n FYI, Being a “code daily” type of open-source SysAdmin\/Operations Manager, I’ll post here a ‘tricks & tips’ that I’ve found useful when using and programming in the Bash Shell. This one notes how to replace a Bash variable name with another … Continue reading # initialise
\nfirst_last1=10 ; first_last2=20 ; first_last3=30
\n# process
\ncount=1
\nwhile [ $count -le 3 ]; do
\n TMP=\"first_last$count\"
\n echo Variable named first_last$count = ${!TMP}
\n let \"count+=1\"
\ndone<\/code><\/p>\nVariable named first_last1 = 10
\nVariable named first_last2 = 20
\nVariable named first_last3 = 30<\/code><\/p>\n
\nRichard.<\/p>\n","protected":false},"excerpt":{"rendered":"