For some reason I can’t seem to find a straightforward answer to this and I’m on a bit of a time crunch at the moment. How would I go about inserting a choice line of text after the first line matching a specific string using the sed command. I have … CLIENTSCRIPT=”foo” CLIENTFILE=”bar” And I … Read more
I run this command to find and replace all occurrences of ‘apple’ with ‘orange’ in all files in root of my site: find ./ -exec sed -i ‘s/apple/orange/g’ {} \; But it doesn’t go through sub directories. What is wrong with this command? Here are some lines of output of find ./: ./index.php ./header.php ./fpd … Read more
Is there an invocation of sed todo in-place editing without backups that works both on Linux and Mac? While the BSD sed shipped with OS X seems to need sed -i ” …, the GNU sed Linux distributions usually come with interprets the quotes as empty input file name (instead of the backup extension), and … Read more
I want to delete one or more specific line numbers from a file. How would I do this using sed? 8 Answers 8
Suppose I have ‘abbc’ string and I want to replace: ab -> bc bc -> ab If I try two replaces the result is not what I want: echo ‘abbc’ | sed ‘s/ab/bc/g;s/bc/ab/g’ abab So what sed command can I use to replace like below? echo abbc | sed SED_COMMAND bcab EDIT: Actually the text … Read more
I have a file of strings that are comma separated. I’m trying to replace the commas with a new line. I’ve tried: sed ‘s/,/\n/g’ file but it is not working. What am I missing? 14 Answers 14
Is there a way to tell sed to output only captured groups? For example, given the input: This is a sample 123 text and some 987 numbers And pattern: /([\d]+)/ Could I get only 123 and 987 output in the way formatted by back references? 11 Answers 11
Below is the snippet of a shell script from a larger script. It removes the quotes from the string that is held by a variable. I am doing it using sed, but is it efficient? If not, then what is the efficient way? #!/bin/sh opt=”\”html\\test\\\”” temp=`echo $opt | sed ‘s/.\(.*\)/\1/’ | sed ‘s/\(.*\)./\1/’` echo $temp … Read more
In my bash script I have an external (received from user) string, which I should use in sed pattern. REPLACE=”<funny characters here>” sed “s/KEYWORD/$REPLACE/g” How can I escape the $REPLACE string so it would be safely accepted by sed as a literal replacement? NOTE: The KEYWORD is a dumb substring with no matches etc. It … Read more
I’ve successfully used the following sed command to search/replace text in Linux: sed -i ‘s/old_link/new_link/g’ * However, when I try it on my Mac OS X, I get: “command c expects \ followed by text” I thought my Mac runs a normal BASH shell. What’s up? EDIT: According to @High Performance, this is due to … Read more
