Syntax is similar to sed, but certainly not exactly the same. Even if you don't have a -i supporting sed, you can easily write a script to do the work for you. Instead of sed -i 's/foo/bar/g' file, you …

2012年10月19日 · Great works a treat. I guess _ in there means to look for numbers only after the underscore? In this instance I can always expect an underscore so this will work.

2013年8月30日 · sed 's/"p"/0/g' file.txt > file.txt Unfortunately because of the nature of redirects the above will simply produce a blank file. Instead a temp file must be created for the output …

2015年6月3日 · In your example sed 's/foo/bar/' and sed -e 's/foo/bar/' are equivalent. In both cases s/foo/bar/ is the script that is executed by sed. The second option is more explicit, but …

The single quotes around the sed body will prevent the shell from substituting any variables, so the $ on the left-hand side is escaped only to prevent its special regular expression meaning. – …

For sed -i 's/old/new' *, the expansion of * must ALL be passed as an arglist to sed, and I'm fairly sure this has to happen before the sed process can even be started. Using the for loop, the full …

2017年5月23日 · @AbdullahJibaly The role of /g is unrelated to anything in the back reference. Without /g, sed will only substitute the first occurrence of the regex on each line; with /g you …

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You need to quote \[.*^$/ in the regular expression part of the s command and \&/ in the replacement part, plus newlines.

@tripleee While I'm certain that this would be a duplicate of numerous other questions, the one that you've pointed to isn't the best one since it doesn't contain slashes in the variable.