Modify the value of ${!i}

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All is in the title, this formula permit to show the value of {!i} but not to modify it, do you have any idea ?

Use printf -v.

$ x=foo
$ foo=5
$ printf -v "$x" '%d' 9
$ echo "$foo"
9

To Amend the Par Value Modification Act of 1972: Hearings, , The Administration has proposed legislation authorizing and directing the Secretary of the Treasury to take the necessary steps to modify the par value of the� Definition and Usage. The value property sets or returns the value of the value attribute of a text field. The value property contains the default value OR the value a user types in (or a value set by a script).

Use declare:

$ foo=bar
$ declare $foo=hello
$ echo $bar
hello 

Par Value Modification Act--1972: Hearings, Ninety-second , PAR VALUE MODIFICATION ACT — 1972 THURSDAY , FEBRUARY 24 , 1972 U . S . SENATE , COMMITTEE ON BANKING , HOUSING AND URBAN AFFAIRS � Modify variables. When the code has stopped at a breakpoint, you can modify variables in the variables pane of the debugger. Just click on the variable's current value and you'll be able to type there:

Mostly used syntax are as others answer. A less interesting answer would be to use read:

foo=5
i="foo"
echo "${!i}"
# yields "5"

read -r "$i" <<< 10
echo "${!i}"
# yields "10"

Par Value Modification Appropriations: Hearings, Ninety-third , The total amount of obligations requiring appropriation resulting from the par value change now before you amounts to $ 2 , 225 million consisting of ( a )� Add or Modify File Properties using the Details Tab. Open File Explorer. Right-click the file you want to edit the file property for. Click on the Details tab, and hover the mouse cursor over the values in the right column ('Value') to see which items you can modify. Click on the value of the property you want to modify, and enter its value.

To Provide for a Modification in the Par Value of the Dollar: , A change in the price of gold would, however, lead to an arbitrary distribution of gains and losses in the value of reserve assets consequent on a currency� Changing values in a vector in R is actually pretty simple. To illustrate, let’s assume that you created two vectors containing the number of baskets that Granny and Geraldine made in six basketball games, as follows: > baskets.of.Granny <- c(12,4,4,6,9,3) > baskets.of.Geraldine <- c(5,3,2,2,12,9) But suppose that Granny tells you that you made a mistake: […]

Background Material on Legislation Modifying the Par Value of the , Thus , the Par Value Modification Act is before you to honor a critical commitment made in behalf of the U . S . Government at the Smithsonian meeting . Values must not exceed (or fall below) the size limit set for the field. For example, you can convert a currency field to an Integer field only when those values are greater than 255 and do not exceed 32,767. AutoNumber. Values must fall within the size limit set for the field. Yes/No "Yes" values convert to -1. "No" values convert to 0. Hyperlink

Modifying variable values, TABLE 1 Percent Percent change appreciation from IMF against Currency units per dollar Type of parity of U.S. — - Country rate Apr. 30, 19711 dollar 23 Old� For example, you cannot add or change REG_EXPAND_SZ or REG_MULTI_SZ values with Regedit.exe on a Windows NT 4.0-based or Windows 2000-based computer. Regedt32.exe is the primary Registry Editor for Windows NT 4.0 and Windows 2000. If you must use Regedt32.exe, you cannot use Registration Entries (.reg) files to modify the registry.

Comments
  • Possible duplicate of Indirect variable assignment in bash
  • ⚠️ Please stop posting (and upvoting) answers! All three answers posted here are duplicates of answers to this seven year old question. If you have a genuinely new answer, post it there, not here.
  • I downvoted because this answer is a duplicate of stackoverflow.com/a/16973754/6770384.
  • I downvoted because this answer is a duplicate of stackoverflow.com/a/11460242/6770384.
  • And that makes the answer bad and less helpful? With this attitude, less answers will be posted, because they may be duplicates of something old. Anyway, I don't change my behavior.
  • This answer got posted after the hint "possible duplicate of" was there. Also I think each user should research whether a question is an exact duplicate before answering - especially for basic questions like this.
  • I downvoted because this answer is a duplicate of stackoverflow.com/a/51948654/6770384.