переводить символы (translate characters)
Имя (Name)
tr — translate characters
Синопсис (Synopsis)
tr [
-c|-C] [
-s]
string1 string2
tr -s [
-c|-C]
string1
tr -d [
-c|-C]
string1
tr -ds [
-c|-C]
string1 string2
Описание (Description)
The tr utility shall copy the standard input to the standard
output with substitution or deletion of selected characters. The
options specified and the string1 and string2 operands shall
control translations that occur while copying characters and
single-character collating elements.