unix命令
代碼:
UNIX | SED
-------------+----------------------------------------------------------------
cat | sed ':'
cat -s | sed '/./,/^$/!d'
tac | sed '1!G;h;$!d'
grep | sed '/patt/!d'
grep -v | sed '/patt/d'
head | sed '10q'
head -1 | sed 'q'
tail | sed -e ':a' -e '$q;N;11,$D;ba'
tail -1 | sed '$!d'
tail -f | sed -u '/./!d'
cut -c 10 | sed 's/\(.\)\{10\}.*/\1/'
cut -d: -f4 | sed 's/\(\([^:]*\):\)\{4\}.*/\2/'
tr A-Z a-z | sed 'y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/'
tr a-z A-Z | sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'
tr -s ' ' | sed 's/ \+/ /g'
tr -d '\012' | sed 'H;$!d;g;s/\n//g'
wc -l | sed -n '$='
uniq | sed 'N;/^\(.*\)\n\1$/!P;D'
rev | sed '/\n/!G;s/\(.\)\(.*\n\)/&\2\1/;//D;s/.//'
basename | sed 's,.*/,,'
dirname | sed 's,[^/]*$,,'
xargs | sed -e ':a' -e '$!N;s/\n/ /;ta'
paste -sd: | sed -e ':a' -e '$!N;s/\n/:/;ta'
cat -n | sed '=' | sed '$!N;s/\n/ /'
grep -n | sed -n '/patt/{=;p;}' | sed '$!N;s/\n/:/'
cp orig new| sed 'w new' orig
