SED implementation with Python 3
#1.Supports n, i, e parameters #2 Supports nth replacement, p, g, w flags #3 Checks for correct quotes on command #4 Supports echo, bash, file input format #5 Supports chained commands
Tested Commands:
sed "s/ks/kg/g" b.txt # File not found sed -e 's/kali/roni/2' example.txt #2 sed 's/kali/roni/2' example.txt # 3 sed -e 's/\bben\b/jordan/g' example.txt #4 example replacing only the exact match for "ben" with "jordan" sed -e 's/\bben\b/jordan/p' example.txt #5 replacing first occurences of ben, prints match again sed -e 's/ben/jordan/p' example.txt #6 replacing first matches in a row for ben including not exact sed -e 's/ben/jordan/g' example.txt #7 replacing all occurrences of ben with jordan, not exact sed -e 's/ben/jordan/pg' example.txt # 8 replacing all occurrences of ben with jordan,not exact, print matche again sed -e 's/\bb e n\b/jordan/g' example.txt #9 doesn't replace anything sed -e 's/\bb e n\b/jordan/g" example.txt #10 bad quotes error sed sed "s/kings/kings/g" example.txt #11 incorrect format sed -e 's/\bben\b/jordan/' example.txt # 12 replace first ben in row, no parameter echo "A,B,C" | sed "s/,/','/g" #13 echo "A,B,C" | sed "s/,/','/" #14 echo "A,B,C" | sed "s/,/','/pg" #15 echo "A,B,C" | sed -e "s/,/','/pg" #16 sed "s/,/','/g" <<< "A,B,C" #17 sed -i "s/,/','/g" <<< "A,B,C" #18 No input file sed "s/,/','/p" <<< "A,B,C" # 19 sed -e 's/ben/jordan/2' example2.txt #20 sed -e 's/\sben\s/jordan/g' example2.txt #21 sed -n 's/\bben\b/jordan/g' example.txt#22 echo "unix" | sed -n 's/unix/linux/p' #23 prints linux echo "unix" | sed -n 's/unix/linux/' #24 prints nothing echo "unix" | sed -n 's/unix/linux/w' #25 File not found - can't open file sed -e 's/a/A/' -e 's/b/B/' example.txt #26 chain commands echo "unixab" | sed -e 's/a/A/' -e 's/b/B/' #27 unixAb sed -e 's/a/A/' -e 's/b/B/' example.txt #28 chain commands with file sed -e 's/a/A/' -e 's/b/B/gp' example.txt # 29 sed -e 's/ben/jordan/g' -e 's/jordan/n/gp' example.txt # 30 sed -e 's/a/A\/' -e 's/b/B/' example.txt # 31 sed -e 's/a/A\/' -e 's/b/B/' -e 's/r/G/' example.txt #32 3 chained commands sed -e 's/a/A\/\/' -e 's/b/B/' example.txt #33 Incorrect foramt error sed -n 's/ben/jordan/pg' example.txt #34 tests n parameter with p, prints changes sed -n 's/ben/jordan/g' example.txt #35 doesn't print without p flag sed -i 's/ben/j/' example2.txt #36 writes changes to file