Linux Commands Reference - Complete Linux Command Guide
Comprehensive Linux command reference with 150+ commands. Search, filter by category, and view detailed usage examples.
tr
Translate or delete characters
Syntax
tr [OPTION]... SET1 [SET2]Common Options
-dDelete characters-sSqueeze repeated characters-cUse complement of SET1-tTruncate SET1 to SET2 lengthCommon Examples
tr 'a-z' 'A-Z' < file.txtConvert to uppercase
tr -d '0-9' < file.txtDelete all digits
tr -s ' ' < file.txtSqueeze multiple spaces
echo 'hello' | tr 'a-z' 'A-Z'Translate characters
tr -d '\r' < win.txt > unix.txtRemove Windows carriage returns
tr -c 'a-zA-Z0-9' '_' < file.txtReplace non-alphanumeric chars
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