Command line text processing with GNU Coreutils

Preface Prerequisites Conventions Acknowledgements Feedback and Errata Author info License Book version Introduction Installation Documentation cat and tac Creating text files Concatenate files Accepting stdin data Squeeze consecutive empty lines Prefix line numbers Viewing special characters Useless use of cat tac Customize line separator for tac head and tail Leading and trailing lines Excluding the last N lines Starting from Nth line Multiple input files Byte selection Range of lines NUL separator Further Reading tr Translation Different length sets Escape sequences and character sets Deleting characters Complement Squeeze cut Individual field selections Field ranges Input field delimiter Output field delimiter Complement Suppress lines without delimiters Character selections NUL separator Alternatives seq Integer sequences Floating-point sequences Customizing separator Leading zeros printf style formatting Limitations shuf Randomize input lines Limit output lines Repeated lines Specify input as arguments Generate random numbers Specifying output file NUL separator paste Concatenating files column wise Interleaving lines Multiple columns from single input Multicharacter delimiters Serialize NUL separator pr Columnate Customizing page width Concatenating files column wise Miscellaneous fold and fmt fold fmt sort Default sort and Collating order Ignoring headers Dictionary sort Reversed order Numeric sort Human numeric sort Version sort Random sort Unique sort Column sort Character positions within columns Debugging Check if sorted Specifying output file Merge sort NUL separator Further Reading uniq Retain single copy of duplicates Duplicates only Unique only Grouping similar lines Prefix count Ignoring case Partial match Specifying output file NUL separator Alternatives comm Three column output Suppressing columns Duplicate lines NUL separator Alternatives join Default join Non-matching lines Change field separator Files with headers Change key field Customize output field list Same number of output fields Set operations NUL separator Alternatives nl Default numbering Number formatting Customize width Customize separator Starting number and increment Section wise numbering Section numbering criteria wc Line, word and byte counts Individual counts Multiple files Character count Longest line length Corner cases split Default split Change number of lines Split by byte count Divide based on file size Interleaved lines Custom line separator Customize filenames Exclude empty files Process parts through another command csplit Split on Nth line Split on regexp Regexp offset Repeat split Keep files on error Suppress matched lines Exclude empty files Customize filenames expand and unexpand Default expand Expand only initial tabs Customize tab stop width Default unexpand Unexpand all blanks Change tab stop width basename and dirname Extract filename from path Remove file extension Remove filename from path Multiple arguments Combining basename and dirname NUL separator What next?