Cut can be used to delimit (i.e. split into parts) a string. A parameter to cut tells it where to "cut" the string (here it is on points, so if the IP address is of the following format: "198.51.100.0", it will be split into 198 51 100 and 0).

2021年10月17日 · Here is an example of using cut to break input into fields using a space delimiter, and obtaining the second field: cut -f2 -d' ' How can the delimiter be defined as a tab, instead of a space?

2020年11月1日 · You got the right tool for the job, cut, but are making it far more complicated than you need. There is absolutely no reason to use a bash loop here, that just makes things slower and more complicated. cut will process every line in the file by itself. However, the default delimiter for cut is a tab, not a space, so you need to tell it to cut on spaces using the -d flag. …

2014年3月29日 · For example, the cut command can take a parameter -f, which according to man select only these fields; also print any line that contains no delimiter character, unless the -s option is specified In this context, what is a field?

I've implemented a patch that adds -m as a new command-line option to cut(1), which works in the field mode and treats multiple consecutive delimiters as a single delimiter. Using this new feature solves the OP's question in a rather efficient way.

2015年8月9日 · The best way to delete columns is with cut: cut --complement -d' ' -f6,8 file Explanation: -d specifies the delimiter; in this case, a space --complement keeps the columns other than the ones specified in -f -f specifies the columns to cut (rather than the columns to keep, since --complement is being used); in this case, columns 6 and 8

Awk does the job in one-line but cut needs a grep command to get only the lines which contain particular word and it prints the column 2 according to the delimiter space.

2022年9月21日 · awk can do what grep and cut do, and awk is more flexible by default than cut about its field separators awk '/^2014-/ {print $3}' filename

How could I use the cut command to extract a list of usernames and login shells from the /etc/passwd file, where the resulting usernames and login shells are separated by a single space?

2018年7月26日 · The cut command selects columns (fields) to retain, but it does not help with filtering lines. From the example it appears the goal is to do both. It is not clear from the example if lines can be filtered strictly by pattern matching (eg. grep), but that's a possibility. Or it might be necessary to use an awk script or some other scripting language. It's not really clear from the …