Utility Programs

 
 sort file 		 sort contents of  file, send result to standard output

 grep  pattern file 		 look for  pattern in  file, send 
 result to standard output

 uniq  file1 file2 		 delete repeated lines in  file1, write new version to  file2

 wc  file 		 displays the number of lines, words, and characters in  file

 echo  string 		 write the parameter  string to standard output, translate special characters

 find  path 		 search the directory tree  path (see  man
 page for more details)

 tar  file 		 write to or retrieve files from an archival storage media

 compress  file 		 compresses the file and writes  file. Z

 uncompress  file.Z 		 restores  file from compressed file