以编程方式删除osx终端中2个字符之间的所有文本

Question

I have a thousand of txt files

1.txt
2.txt
3.txt

in each files, several times I have tags among my text:

{somethinghere...blablabla} than the text I want to keep than again {somethinghere...blablabla}

I'm not very pratical in mac osx command line, can someone help me to write a command opening each file, parsing it, and deleting all text included by two "{"?

To be clear:

First of all I need to open each file, than parse the text. When the loop finds a "{" it starts deleting till it founds a "}". When done parsing it saves and close the file. That's what I need to do.

Answer 1

 $ sed -i.bak -e 's@{[^}]*}@@g' *.txt

• -i.bak make a backup copy of each modified files. If you don't want backups, on OsX use -i'' (the quotes are not necessary on Linux)
• in substitutions, the delimiter can be another character than / , here I choose @ , so : s@<REGEX>@<REMPLACEMENT>@ (the basic form for substitutions are s/// )
• In the regex, we search a litteral { and all but not a } with [^}] . * means 0 or more occurences. Last, we search the closing } and we replace the matching part by nothing, so it delete what was matching
• the g modifier @the end means not only one match but all