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(→-d) |
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| Line 9: | Line 9: | ||
=Options= | =Options= | ||
==<tt>-d</tt>== | ==<tt>-d</tt>== | ||
Delete from the input the characters specified in the | Delete from the input the characters specified in the given string. | ||
Example, delete new lines: | Example, delete new lines: | ||
Revision as of 02:14, 10 May 2022
Internal
Overview
Translate characters.
Options
-d
Delete from the input the characters specified in the given string.
Example, delete new lines:
cat ./test.txt | tr -d \\n
To Uppercase
Also see bash Parameter and Variable Expansion.
First Character
$(echo ${var_name:0:1} | tr '[:lower:]' '[:upper:]')${var_name:1}
All Characters
echo "hi" | tr '[:lower:]' '[:upper:]'