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To replace all matches, choose the Replace All button. To make one replacement at a time, choose the Replace Next button next to the Replace text box.
#Debian find word in file and replace all instances how to#
In this tutorial, we learned how to use the sed command on CLI and the find and replace tool on GUI to find and replace a text string on Linux.You can access replacement options by choosing the button next to the Find text box. You can also try the control options to do more practice. The following image shows how to perform this exercise. Type the string 'sea' in the Find box and the string 'ocean' in the Replace box and click the Replace All button. To perform this operation, open the file, and press the Ctrl + H keys. We want to replace this string with the string 'ocean'. Suppose we have a file that contains a text string 'sea'. You can also use regular expressions to perform more the specific replace operation. To perform this operation in the backward direction, click the 'Replace backward' option. To replace a specific occurrence, click the Find until you reach the desired occurrence.īy default, the tool performs the replace operation in the forward direction. To replace only the first occurrence, click the Replace button. To replace all occurrences, click the Replace All button. You can replace all or some occurrences of the string. Type the text string that you want to remove in the Find box and the text string that you want to add in the Replace box. This tool contains some control options and two input boxes: find and replace. To access this tool directly, you can press Ctrl + H keys. For example, the Libra office assigns Ctrl + H keys to this tool. Different text editors assign different shortcut keys to access this tool. You can also use a combination of shortcut keys to access this tool. To find and replace text strings on GUI, open the file in which you want to replace text strings, click the Edit menu item and click the Replace tool. The following image shows the output of the above command.įinding and replacing text strings on GUI The following command replaces the second occurrence of the text string 'ocean' with the text string 'sea' in the file 'ocean.txt'. If you will save the changes in the new file, the command will not change the original file. If you want to store the modified file as the new file, you can specify the name of the new file. > :- Shell's feature to redirect the output of a command to another command or store the output as a new file. For example, if you want to replace the third occurrence of the text string, use the number 3 at the place of the letter 'g'.įile_name :- File name including the path. To replace a specific occurrence of the text string, use the place number of the occurrence. You can also perform the replace operation for a specific occurrence of the text string. G :- Command's option to perform the action in the entire file. New_string :- The new text string that we want to use in the place of the current text string. S :- Command's option to search and replace a text string.Įxiting_string :- The text string that we want to replace. The following outlines explain the parameters of the above syntax. $sed s/exiting_string/new_string/g file_name > new_file_name