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How to add double quotes to a line with Sed or AWK?
Which has only one double quote and is missing the closing double quote. I’ve also tried awk {print “\\””$1″\\””} with exactly the same result. I need help. Your input file has carriage returns at the end of the lines. You need to use dos2unix on the file to remove them. Or you can do this: which will remove the carriage return and add the quotes.
Is it possible to use single quotes in SED?
To understand how to do this, you need to understand how the shell is messing with your quotes and backslashes as well as whether sed is messing with them. Generally, it is easiest in the shell to use single quotes – except when the regex must match single quotes. There are no special characters inside single quotes; the next single quote ends it.
How to replace single quotes with double quotes in shell?
The shell sees a single quote as ending a string. So, let it. You had But, if you replace the ‘ in the sed command with ‘”‘”‘, then shell will see the first ‘ as ending the first single-quoted string, then “‘” as a double-quoted single quote, and then the last ‘ as a beginning of a new single-quoted string.
What is the anchor for a SED line?
^ is the anchor for line start and $ the anchor for line end. With the sed line we’re replacing the line start and the line end with ” and ” respectively. Your file seems to have DOS line endings.
How to change the address of a line in AWK?
To replace a line, you can use the c (change) or s (substitute) commands with a numeric address: Alternatives using awk: awk interprets backslashes in variables passed with -v but not in variables passed using ENVIRON: Both ENVIRON and -v are defined by POSIX.
How to insert a line in a POSIX SED?
POSIX sed (and for example OS X’s sed, the sed below) require i to be followed by a backslash and a newline. Also at least OS X’s sed does not include a newline after the inserted text: