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Tag: linux

set line-increment in nl command to a float number

I want to use nl command to do numbering for lines. Is it possible to set line-increment in nl command to a float number. I know that we cant use -i switch to set line-increment like this: but it doesn’t work for float numbers like: I want the output to be like this Answer Could use awk instead With pad…

Sorting of data in descending order

Allow me to clarify my query: I have a database with thousand of character strings, followed by some values (based on scoring matrix) There are equal values also present. I am trying to sort the data in descending order using: But the data is still disarranged. Also tried by adding -k argument. Is it possible…

Piping To Grep Is Giving Too Many Results

I’m trying to check whether a particular service is running via a Linux terminal, and the following command doesn’t seem to be filtering the results as expected. Not sure what I’m doing wrong… This produces several lines of output, including, for example, I’m not sure why this is…

How to register a signal handler for a subprocess?

Adding a signal handler, e.g. with process.sh doesn’t work because CtrlC interrupts the child process (only SIGINT received is printed), but both SIGINT received and SIGINT child received should be printed and the child continue to run. Adding signal.SIG_IGN leaves the child untouched, but that not suff…

make implies new Extracting

I created a Buidroot package with the both following files : .mk Config.in I succedded in compiling the package by using the above .mk file. However, because I wanted to modify the source code into output/build I note the following behavior (After removing only .stamp_built) : I obtain a new Extracting, Patch…