$dockerrun-itbusybox/# grepBusyBoxv1.22.1 (2014-05-22 23:22:11UTC) multi-call binary.Usage:grep [-HhnlLoqvsriwFE] [-m N] [-A/B/C N] PATTERN/-e PATTERN.../-f FILE [FILE]...SearchforPATTERNinFILEs (or stdin)-HAdd'filename:'prefix-hDonotadd'filename:'prefix-nAdd'line_no:'prefix-lShowonlynamesoffilesthatmatch-LShowonlynamesoffilesthatdon't match -c Show only count of matching lines -o Show only the matching part of line -q Quiet. Return 0 if PATTERN is found, 1 otherwise -v Select non-matching lines -s Suppress open and read errors -r Recurse -i Ignore case -w Match whole words only -x Match whole lines only -F PATTERN is a literal (not regexp) -E PATTERN is an extended regexp -m N Match up to N times per file -A N Print N lines of trailing context -B N Print N lines of leading context -C N Same as '-AN-BN' -e PTRN Pattern to match -f FILE Read pattern from file