sed can operate on an address: $ sed -i ‘1s/^/<added text> /’ file What is this magical 1s you see on every answer here? Line addressing!. Want to add <added text> on the first 10 lines? $ sed -i ‘1,10s/^/<added text> /’ file Or you can use Command Grouping: $ { echo -n ‘<added text> … Read more
Your two examples look identical, which makes problems hard to diagnose. Potential problems: You may need double quotes, as in sed ‘s/xxx/'”$PWD””https://stackoverflow.com/” $PWD may contain a slash, in which case you need to find a character not contained in $PWD to use as a delimiter. To nail both issues at once, perhaps sed ‘s@xxx@'”$PWD”‘@’
A sed script that will only replace the first occurrence of “Apple” by “Banana” Example Input: Output: Apple Banana Apple Apple Orange Orange Apple Apple This is the simple script: Editor’s note: works with GNU sed only. sed ‘0,/Apple/{s/Apple/Banana/}’ input_filename The first two parameters 0 and /Apple/ are the range specifier. The s/Apple/Banana/ is what … Read more
If you are on a OS X, this probably has nothing to do with the sed command. On the OSX version of sed, the -i option expects an extension argument so your command is actually parsed as the extension argument and the file path is interpreted as the command code. Try adding the -e argument … Read more
Try doing this using GNU sed: sed ‘/CLIENTSCRIPT=”foo”/a CLIENTSCRIPT2=”hello”‘ file if you want to substitute in-place, use sed -i ‘/CLIENTSCRIPT=”foo”/a CLIENTSCRIPT2=”hello”‘ file Output CLIENTSCRIPT=”foo” CLIENTSCRIPT2=”hello” CLIENTFILE=”bar” Doc see sed doc and search \a (append)
Your find should look like that to avoid sending directory names to sed: find ./ -type f -exec sed -i -e ‘s/apple/orange/g’ {} \;
If you really want to just use sed -i the ‘easy’ way, the following DOES work on both GNU and BSD/Mac sed: sed -i.bak ‘s/foo/bar/’ filename Note the lack of space and the dot. Proof: # GNU sed % sed –version | head -1 GNU sed version 4.2.1 % echo ‘foo’ > file % sed … Read more
If you want to delete lines from 5 through 10 and line 12th: sed -e ‘5,10d;12d’ file This will print the results to the screen. If you want to save the results to the same file: sed -i.bak -e ‘5,10d;12d’ file This will store the unmodified file as file.bak, and delete the given lines. Note: … Read more
Maybe something like this: sed ‘s/ab/~~/g; s/bc/ab/g; s/~~/bc/g’ Replace ~ with a character that you know won’t be in the string.
Use tr instead: tr , ‘\n’ < file