The zq program is used to query an index. $ zindex file.gz -pipe "jq -raw-output -unbuffered '.orderId.id] | join(\" \")'" ![]() Matches separated by spaces (which is the default separator). Line piped to jq creates a single line of output, with multiple ![]() OrderId.ids, then joins them with a space to ensure each individual JSON field orderId.id in any of the items in the document root'sĪctions array (requires jq). $ zindex file.gz -regex 'id:(+)' -numeric -uniqueĬreate an index on the second field of a CSV file: $ zindex file.gz -delimiter, -field 2 The capture group indicates the part that's to be indexed,Īnd the options show each line has a unique, numeric index. This can be done by a regular expression, by field, or by piping eachīy default zindex creates an index of file.gz.zindex when asked toĬreate an index on lines matching a numeric regularĮxpression. Zindex needs to be told what part of each line constitutes the index. query the indexed file with zq from the package.One can follow this workflow to have good performance: If you use Windows checkt this out about Linux tools in Windows. That’s It! If you know any other command-line trick to find string or word in files, do share with us or ask any questions regarding this topic, use the comment form below.For someone working with huge text files in Unix/Linux/Mac/Cygwin. $ grep -Rinw ~/bin/ -e 'check_root' -e 'netstat' In addition, it is possible to search for more than one pattern, using the following command. $ grep -Rnw -include=\*.sh ~/bin/ -e 'check_root' ![]() This example instructs grep to only look through all. $ grep -Rinw ~/bin/ -e 'check_root'Īssuming there are several types of files in a directory you wish to search in, you can also specify the type of files to be searched for instance, by their extension using the -include option. If you want to know the exact line where the string of text exist, include the -n option. To ignore case distinctions employ the -i option as shown: $ grep -Riw ~/bin/ -e 'check_root' You should use the sudo command when searching certain directories or files that require root permissions (unless you are managing your system with the root account). Where the -R option tells grep to read all files under each directory, recursively, following symbolic links only if they are on the command line and option -w instructs it to select only those lines containing matches that form whole words, and -e is used to specify the string (pattern) to be searched. The command below will list all files containing a line with the text “ check_root”, by recursively and aggressively searching the ~/bin directory. Read Also: 11 Advanced Linux ‘Grep’ Commands on Character Classes and Bracket Expressions This article will guide you on how to do that, you will learn how to recursively dig through directories to find and list all files that contain a given string of text.Ī simple way to work this out is by using grep pattern searching tool, is a powerful, efficient, reliable and most popular command-line utility for finding patterns and words from files or directories on Unix-like systems. ![]() Do you want to find all files that contain a particular word or string of text on your entire Linux system or a given directory.
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