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This should be easy: I want to run sed against a literal string, not an input file. If you wonder why, it is to, for example edit values stored in variables, not necessarily text data.
When I do:
sed 's/,/','/g' "A,B,C" where A,B,C is the literal which I want to change to A','B','C
I get
Can't open A,B,C As though it thinks A,B,C is a file.
I tried piping it to echo:
echo "A,B,C" | sed 's/,/','/g' I get a prompt.
What is the right way to do it?
238
The sed command is a common Linux command-line text processing utility. It's pretty convenient to process text files using this command. However, sometimes, the text we want the sed command to process is not in a file. Instead, it can be a literal string or saved in a shell variable.
Sed provides “w” command to write the pattern space data to a new file. Sed creates or truncates the given filename before reads the first input line and it writes all the matches to a file without closing and re-opening the file.
By default sed does not overwrite the original file; it writes to stdout (hence the result can be redirected using the shell operator > as you showed).
You have a single quotes conflict, so use:
echo "A,B,C" | sed "s/,/','/g" If using bash, you can do too (<<< is a here-string):
sed "s/,/','/g" <<< "A,B,C" but not
sed "s/,/','/g" "A,B,C" because sed expect file(s) as argument(s)
EDIT:
if you use ksh or any other ones :
echo string | sed ... Works like you want:
echo "A,B,C" | sed s/,/\',\'/g If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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