Command Summary

headPresents 1st N lines of text
tailPresents last N lines of text
tacReverses concatenation of files
fmtReformats text - limiting the maximum line width
foldBreaks up text lines into shorter lines
nlProduces line numbered output
trMainly translates text according to a substitution pattern
prFormats text for printing
basenameDisplays file component of a file path
dirnameDisplays directory parts of a file path