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Translate characters. | Translate characters. | ||
=Options= | |||
==<tt>-d</tt>== | |||
Delete from the input the characters specified in the input string. | |||
Example, delete new lines: | |||
<syntaxhighlight lang='bash'> | |||
cat ./test.txt | tr -d \\n | |||
</syntaxhighlight> | |||
=To Uppercase= | =To Uppercase= | ||
Revision as of 02:11, 10 May 2022
Internal
Overview
Translate characters.
Options
-d
Delete from the input the characters specified in the input 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:]'