sed remove all lines starting with x or X, but the lines start with spaces
39116
sed : Ignore line starting whitespace for match
18339
sed on OSX insert at a certain line
4497
Delete specific line number(s) from a text file using sed?
14690
sed - find and replace text containing "/"
5760
How to extract characters between the delimiters using sed?
94529
Using 'sed' to find and replace
32990
How to find and replace using sed on records starting with Specific number
158491
How can I replace text after a specific word using sed?
83564
How to grep lines which does not begin with "#" or ";"?
143823
How to replace the nth occurrence of a string using sed
54939
Regular expression: match start or whitespace
148316
How do I stop sed from adding extra newline characters
100478
How can I exclude the lines which matche the range patterns in sed?
104310
How to only substitute lines that match several patterns in sed?
42244
Replace \n by a newline in sed portably
81900
remove lines where a field's value is less than or equal to 3 - sed or awk?
158532
replace a string with sed from specific lines