The tr command is used to translate, delete or squeeze character.
Synopsis :
tr [option] set1 set2
Example :
echo “linux” | tr “[a –z]” “[A – Z]”
Option
-c complete the set of character in string
-d delete the character in set 1
-s replaces repeated character listed in the set 1 with single occurrence
-t truncates set 1
wc command are used to find the number of lines, words and characters in a file.
Synopsis :
wc [option] files
Example :
wc –l Linux.bat
Option
-l print number of lines in a file
-w print number of words in a file
-c display the content of bytes in a file
-m print the count of characters from a files
-l prints only the length of the longest lines in a file
sort command is used to order the elements or text. It has a capability of sorting numerical values and string.
Synopsis :
sort [option] file name
Example :
sort file1.txt
Option
-b ignore leading spaces in each line.
-d used dictionary sort order.
-m case based on month (consider first 3 letter).
-n uses numeric sorting.
-r reverse order sorting
-k sort files based on the data in the specified field portion
-u suppresses duplicate lines
-t input field separator