Check if a string is into a variable

[[ ${var##*yourstring*} != ${var} ]]
Returns true (0) if the string is into $var, or false (1) if not.
Sample Output
$ var=foobar
$ [[ ${var##*foo*} != ${var} ]]
$ echo $?
$ [[ ${var##*notfoo*} != ${var} ]]
$ echo $?

By: sldenazis
2013-06-12 19:38:30

What Others Think

bash has is own matching test. Better is: [[ $var =~ "yourstring" ]]
jld · 277 weeks and 4 days ago
Thanks jld!!
sldenazis · 267 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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