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If you want to inhibit the display of commands during a particular make run, you can use the -s option. If you want to inhibit the display of all command lines in every run, add the special target . SILENT to your makefile . and there is no file named xyz , make halts after rm returns its exit status.
The ' @ ' is discarded before the line is passed to the shell. Typically you would use this for a command whose only effect is to print something, such as an echo command to indicate progress through the makefile: @echo About to make distribution files.
The make command uses information from a description file, which you create, to build a file containing the completed program, which is then called a target file. The internal rules for the make command are located in a file that looks like a description file.
Add @ to the beginning of command to tell gmake not to print the command being executed. Like this:
run:
@java myprogram
As Oli suggested, this is a feature of Make and not of Bash.
On the other hand, Bash will never echo commands being executed unless you tell it to do so explicitly (i.e. with -x option).
Even simpler, use make -s (silent mode)!
You can also use .SILENT
.SILENT: run
hi:
echo "Hola!"
run:
java myprogram
In this case, make hi will output command, but make run will not output.
The effect of preceding the command with an @ can be extended to a section by extending the command using a trailing backslash on the line. If a .PHONY command is desired to suppress output one can begin the section with:
@printf "..."
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