How to remove text after '-'?
I have a list of files (basically they are .deb packages). Let's say:
abc-de-1.2.3-1.deb
fgh-ij-4.5.6-2.deb
klm-no-7.8.9-3.deb
pqrs-10.11.12-4.deb
...
As you can see some of the file names have numbers after a - while others have some text after a - and then numbers after the next -.
Are there any ways to remove everything starting from the numbers including the -, i.e.,
abc-de
fgh-ij
klm-no
pqrs
...
I want to edit the list, not rename the files.
Solution 1:
If you're able to use the first number to identify what you want to remove every time, you could use:
$ sed 's/-[0-9].*//' file
abc-de
fgh-ij
klm-no
pqrs
Notes
-
s/old/new/replaceoldwithnew -
[0-9]some digit -
.*any number of any characters
Solution 2:
Using grep with Perl regular expressions:
$ grep -Po "^[a-z-]*(?=-[0-9])" filename
abc-de
fgh-ij
klm-no
pqrs