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  • [[:blank:]] is only space+tab in the C/POSIX locale. In other locales, it often matches a lot more (though not ASCII ones) Commented Jan 10, 2023 at 7:53
  • @kusalananda thank you so much!! That worked and I managed to rename all the dir paths in the file. I have a follow up question. is it possible to use wildcard or something for 1344P1052_ssl0 because in one text file, this directory path can be different. like 1589P1856_ssl9 and so forth. Commented Jan 11, 2023 at 6:35
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    @PritiPatel I showed how to combine the pattern for 1344P1052_ssl02 and 1344P1052_ssl09 into 1344P1052_ssl0[29]. If you want to allow for any two-digit integer, use 1344P1052_ssl[0-9][0-9]. If you want to allow for any integer regardless of how many digits (including no digits), use 1344P1052_ssl[0-9]*. Commented Jan 11, 2023 at 6:40
  • @Kusalananda sorry for the confusion. I meant the whole string 1344P1052_ssl09 regardless of its name and integer. I replaced 's|^1344P1052_ssl0[29] with 's|^* but that didn't work. Commented Jan 11, 2023 at 7:51
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    @PritiPatel s|.*[[:blank:]]/gs:/prod1/|sd://prod1-backup/| Commented Jan 11, 2023 at 7:53