23 lines
592 B
Plaintext
23 lines
592 B
Plaintext
#replace : with new line
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echo $PATH|tr ":" "\n" #equivalent with:
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echo $PATH|tr -t ":" \n
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#remove all occurance of "ab"
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echo aabbcc |tr -d "ab"
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#ouput: cc
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#complement "aa"
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echo aabbccd |tr -c "aa" 1
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#output: aa11111 without new line
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#tip: Complement meaning keep aa,all others are replaced with 1
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#complement "ab\n"
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echo aabbccd |tr -c "ab\n" 1
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#output: aabb111 with new line
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#Preserve all alpha(-c). ":-[:digit:] etc" will be translated to "\n". sequeeze mode.
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echo $PATH|tr -cs "[:alpha:]" "\n"
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#ordered list to unordered list
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echo "1. /usr/bin\n2. /bin" |tr -cs " /[:alpha:]\n" "+"
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