Equivalent for typeset -l and typeset -u in LINUX bash?

linux bash ksh hp-ux
Justin picture Justin · Jun 18, 2012 · Viewed 10.6k times · Source

I'm in the process of porting over a script from HP-UX to LINUX. When I try to source the script, bash complains that 

bash: typeset: -u: invalid option
typeset: usage: typeset [-afFirtx] [-p] name[=value] ...

typeset: usage: typeset [-afFirtx] [-p] name[=value] ...
./install_profile: line 237: typeset: -l: invalid option

From what I can see, typeset is used to assign a value to a variable, although I don't quite understand what typeset -u and typeset -l do specifically that's different from a general assignment such as foo="bar".

I was wondering if there was some equivalent way to express typeset -u and typeset -l for LINUX bash since it does not appear to be compatible with bash.

Altneratively, I was wondering if it would be possible to get the typeset commands recognized as ksh commands, since it appears that typeset is from ksh.

Thanks.

Answer

chepner picture chepner · Jun 18, 2012

What versions of bash are you porting from/to? typeset -l makes the variable such that any assignment to it converts upper case to lower case; typeset -u converts lower to upper. I suspect those options were added to bash sometime around version 4.

Related questions

How do I recursively list all directories at a location, breadth-first?

Breadth-first list is important, here. Also, limiting the depth searched would be nice. $ find . -type d /foo /foo/subfoo /foo/subfoo/subsub /foo/subfoo/subsub/subsubsub /bar /bar/subbar $ find . -type d -depth /foo/subfoo/subsub/subsubsub /foo/subfoo/subsub /…

Read More
What does if [[ $? -ne 0 ]]; mean in .ksh

I have a following piece of code that says if everything is executed mail a person if it fails mail the person with a error message. if [[ $? -ne 0 ]]; then mailx -s" could not PreProcess files" [email protected] else mailx …

Read More
Convert a text string in bash to array

How do i convert a string like this in BASH to an array in bash! I have a string str which contains "title1 title2 title3 title4 title5" (space seperated titles) I want the str to modified to an array which …

Read More