![]() Your task is to implement a simplified grep command, which supports searching. ![]() Also the sed pattern should really be something like "+" (i.e. The Unix grep command searches files for lines that match a regular expression. In case you are using git, the command git grep -h sort -unique will give unique occurrences of grep matches.The one marked as duplicate is different because it it is not about grep. (note -the sed command is sloppy because it doesn't include escaping values. sort -unique Ahmed Nabil at 7:53 I vote for reopening this question. Now the -f and -w options of uniq can be used to skip preceding fields/columns and to specify the comparison width (column(s) width).Ä¡) Temporarily make the column of interest a fixed width greater than or equal to the field's max width.Ä¢) Use -f uniq option to skip the prior columns, and use the -w uniq option to limit the width to the tmp_fixed_width.Ä£) Remove trailing spaces from the column to "restore" it's width (assuming there were no trailing spaces beforehand). It is useful when you are looking through log files, searching for a specific entry, or you want to find a unique line or piece of code located somewhere in. One way of doing this is to use awk printf with a field/column width specifier ("%15s"). I have tried sort -u, sort uniq -u, and grep sort uniq -u with the same results. How to grep on unique id which has request and response on different lines Hi I want to find out those unique uids from the log file which have request and response. First format the content such that the column to be compared for uniqueness is a fixed width.
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