Unix commands

[sr320]

What does the second line of the following code do?

tr -cs A-Za-z '\n' |
tr A-Z a-z |
sort |
uniq -c |
sort -rn |
sed ${1}q

[grace-ac]

The second line translates (changes) all uppercase letters to lowercase letters.

[magobu]

Translate all uppercase letters to lowercase from chapter 7 in our textbook. The whole 7 line Unix scrip, by McIlroy, was a reply to the seven-page literate program to count and write the k most common word in a file written by Knuth.

[yaaminiv]

Converts all uppercase letters to lowercase letters

[kimh11]

Converts all uppercase letters (A-Z) to lowercase (a-z) and send the standard output to the next command.

[Jeremyfishb]

Translates all upper case letters to lower case letters and send the standard output to the next command.

[kcribari]

The line tr A-Z a-z | translates the uppercase alphabet to a lowercase alphabet in the pipeline.

[hgloiselle]

it translates the uppercase letters to lowercase ones.

[wsano16]

It translates all uppercase letters to lowercase letters and passes the output via a pipe to the next line of code.

[jgardn92]

It translates all characters that are UPPER CASE alphabet letters to lowercase alphabet letters.

[zscooper]

This line of code uses the translate function tr to change all UPPERCASE letters to lowercase.

[calderatta]

The second line of code takes the input from the previous line, and translates (using the 'tr' function) all uppercase letters ('A-Z') to lowercase letters ('a-z'), then pipes the output to the following command.

[melodysyue]

The second line of code tr A-Z a-z | translates all UPPERCASE letters to lowercase.

[laurahspencer]

Yes what they said, translates/converts uppercase to lowercase. (sorry, late to the game here)