![regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow](https://i.stack.imgur.com/G9wwN.png)
regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow
![Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube](https://i.ytimg.com/vi/76zv1MekLw8/maxresdefault.jpg)
Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube
![Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube](https://i.ytimg.com/vi/76zv1MekLw8/sddefault.jpg)
Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube
![regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow](https://i.stack.imgur.com/VtF2y.png)
regex - I want to isolate a column which might be contains a combination of string and spaces or might has nothing using regexp or any other command in tcl - Stack Overflow
![Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube Mastering Regular Expressions and File Input/Output in TCL: Essential Techniques and Best Practices - YouTube](https://i.ytimg.com/vi/urnPvH1GqYo/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLCb8tmFLXnULgKrLo8-rWkAjYmqSA)