The following solution is for more complex examples of (d), such as: not all fields contain "double-quote" marks, or the presence of embedded "double-quote" marks within fields, or extraneous whitespace around field delimiters. (Thanks to Greg Ubben for this script!) # sed script to conve...
# delete trailing whitespace (spaces, tabs) from end of each line sed 's/[ \t]*$//' # see note on '\t' at end of file # delete BOTH leading and trailing whitespace from each line sed 's/^[ \t]*//;s/[ \t]*$//' # insert 5 blank spaces at beginning of each line (make...
Basically sed is told here to use a substitution (= search and replace) function and to look for "anything but whitespace" at the beginning of the line. The "anything but" here is defined by using a special bracket expression:[^ ]. From thesed documentation: A bracket expression is a l...
delete trailing whitespace (spaces, tabs) from end of each line sed 's/[ \t]*$//' # see note on '\t' at end of file delete BOTH leading and trailing whitespace from each line sed 's/^[ \t]*//;s/[ \t]*$//' insert 5 blank spaces at beginning of each line (make page of...
Original file line numberDiff line numberDiff line change @@ -2335,7 +2335,7 @@ static void printtraceroute_normal(Target *currenths) { /* The beginning and end of timeout consolidation. */ int begin_ttl, end_ttl; begin_ttl = end_ttl = it->ttl; for ( ; it != current...
here, the word ‘pine’ from the second line should remain unchanged, as well as the second occurence in the first line. The result would be: apple cat pine car tag can cat pine tag car AnonymousMarch 28, 2012, 7:21 am mark using the $ sign means at the beginning of a line...
Commandsa,c,i, due to their syntax, cannot be followed by semicolons working as command separators and thus should be terminated with newlines or be placed at the end of ascriptorscript-file. Commands can also be preceded with optional non-significant whitespace characters. SeeMultiple commands...
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If there is no whitespace, particularly carriage-return, at the end of the line, it is expected to function properly. To determine the actual end of the line, usecat -veton the file, which displays a $ symbol. With the use of the option-i, you can update the file by combining your...
6. Stores active (current) line the 'pattern space' and maintains a 'hold space' for usage 7. Used primarily to perform Search-and-Replaces ###AWK's FEATURES### 1. Field processor based on whitespace, by default 2. Used for reporting ( extracting specific columns) from data feed ...