0
votes
0answers
25 views

Variable Substitution in sed [duplicate]

I have this script and I need to count the lines inside a file, then pass the number of lines counted to a for loop so that I can get the contents of each line and put it in a variable. My question ...
5
votes
4answers
3k views

Use a variable reference “inside” another variable

I'm sure it is relatively simple, I just don't know how to do it. #!/usr/bin/ksh set `iostat` myvar=6 I want to something like echo ${$myvar} which i want interpreted as ${$myvar} -> ${6} -> value ...
3
votes
2answers
561 views

pure shell complex substitution in variable

However it may be impossible, I hope I'm just bad man reader =) Is there any way to substitute text in variables on several patterns at time or even using back reference? For example, I have ...