Legacy Equivalents

There are multiple pyp solutions listed for legacy commands, starting with canonical python and then including increasing levels of shortcuts. Please use whatever makes sense to you. The pyp manual has a full list of shortcuts and special functions. Remember, p represents every line as a python string object, while pp represents the entire input as a python list object.

LEGACY	PYP	NOTES
awk ‘{print $1}’	p.split()[0]	splits line on whitespace, selects first field
awk ‘{print $1}’	whitespace[0]	whitespace is array of line split on whitespace
awk ‘{print $1}’	w[0]	w is shortcut for whitespace
awk ‘{print $3 $2 $1}’	w[2],w[1],w[0]	you can use + instead of , for no spaces
cut -d / -f 3	p.split(‘/’)[2]	standard python technique
cut -d / -f 3	slash[2]	slash is array of line split on /
cut -d / -f 3	s[2]	s is shortcut for slash
expr 1 + 1	(1 + 1)	you must use parantheses for math ops
grep X	keep(“X”)	standard grep
grep X	k(“X”)	shortcut grep notation
grep -E “l.*y”	rekeep(‘l.*y’)	grep with regex
grep X -B 1	pp.before(‘X’,1)	keeps the line before the one grepped
grep -v X	lose(“X”)	reverse grep
grep -v X	l(“X”)	shortcut reverse grep notation
grep -v -E “l.*y”	relose(‘l.*y’)	reverse grep with regex
head 10	pp[0:9]	standard python list notation
sed s/legacy/pyp/	p.replace(‘legacy’,’pyp’)	standard python string method
sed s/@//	p.replace(‘@’,’’)	standard python string method
sed s/@//	p.kill(‘@’)	custom pyp string function
sort	pp.sort()	standard pyp list method
sort -u	pp.uniq()	custom pyp funtion
tail 10	pp[-10:]	standard python list notation
xargs	pp.oneline()	custom pyp function that makes list one line
???	p.ext	returns just the file extension
???	p.file	returns just the file name
???	p.dir	returns just the directory