Bash for loop - Revision history

Nighthawk: /* C style for variable usage */

2021-08-30T14:13:59Z

‎C style for variable usage

2021-08-30T14:13:36Z

2021-08-30T14:12:42Z

2018-05-18T19:32:13Z

2018-05-18T19:31:25Z

2018-05-18T19:31:00Z

2018-05-18T19:30:32Z

2013-09-26T14:01:45Z

2013-09-26T14:00:37Z

2013-05-12T01:26:51Z

@@ Line 51: / Line 51: @@
 <source lang="bash">
-for (( i = 0; i <= $length; i++ ))
+for (( i=0; i<=$length; i++ ))
    do
         echo "do something right $i"

@@ Line 50: / Line 50: @@
 == C style for variable usage==
+<source lang="bash">
 for (( i = 0; i <= $length; i++ ))
    do
         echo "do something right $i"
    done
 [[category:bash]]

@@ Line 47: / Line 47: @@
     commandN
   done
 [[category:bash]]

@@ Line 13: / Line 13: @@
      printf "$i "
    done
 </source>
 == portable for loop (for older bash versions) ==

@@ Line 13: / Line 13: @@
      printf "$i "
    done
+3 4 5 6 7 8 9 10
 </source>

← Older revision		Revision as of 19:30, 18 May 2018
Line 5:		Line 5:
	done		done

		+	using variable start and end parameters
		+
		+	<source lang="bash">
		+	NUM=10
		+	for (( i=2; i<=$NUM; i++ ))
		+	do
		+	echo $i
		+	done
		+	</source>

	== portable for loop (for older bash versions) ==		== portable for loop (for older bash versions) ==

@@ Line 14: / Line 14: @@
   for VARIABLE in 1 2 3 4 5 .. N
   do
-	command1
+   command1
-	command2
+   command2
-	commandN
+   commandN
   done
@@ Line 23: / Line 23: @@
   for VARIABLE in file1 file2 file3
   do
-	command1 on $VARIABLE
+   command1 on $VARIABLE
-	command2
+   command2
-	commandN
+   commandN
   done
@@ Line 32: / Line 32: @@
   for OUTPUT in $(Linux-Or-Unix-Command-Here)
   do
-	command1 on $OUTPUT
+   command1 on $OUTPUT
-	command2 on $OUTPUT
+   command2 on $OUTPUT
-	commandN
+   commandN
   done
 [[category:bash]]

@@ Line 10: / Line 10: @@
   do
      echo "the i is $i"
   done
 [[category:bash]]