School Commit Init

Anul 1/Semestrul 2/OS/Seminare/Semianr 1/notes.txt

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+Grep
+
+-E - extended regex
+
+-i - ignore case sensitive
+
+-v - invert match
+
+-c - count
+
+-o - only the matching part
+
+-q - doesnt print the result, sets the exits status
+
+
+
+Sed
+
+sed s/*replace*/*with*/gi *file*
+
+	s - replaces x with y
+
+	g - replaces all (global)
+	i - case insensitive
+
+sed y/*replace*/*with*/ *file*
+
+	y - replace x[i] with y[i]
+
+
+sed /*to_delete*/d
+
+	d - delete
+
+
+Awk
+
+NR - number of current line
+NF - number of fields on the current ine
+$0 - whole line
+$1 - field 1
+
+awk -F '{*code*}' *file*
+
+
+-F -specifie delimitor
+
+code:
+	BEGIN {*before*}
+	{*for each line*}
+	END{*after*}