That part is written to stderr, use 2> to redirect it. For example: foo > stdout.txt 2> stderr.txt or if you want in same file: foo > allout.txt 2>&1 Note: this works in (ba)sh, check your shell for proper syntax
You should use open with the w+ mode: file = open(‘myfile.dat’, ‘w+’)
“kill” will only kill one screen window. To “kill” the complete session, use quit. Example $ screen -X -S [session # you want to kill] quit For dead sessions use: $ screen -wipe
The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg. when assigning multi-line string to a shell variable, file or a pipe. Examples of cat <<EOF syntax usage in Bash: 1. Assign multi-line string to a shell variable $ sql=$(cat <<EOF SELECT foo, bar FROM db WHERE foo=’baz’ EOF ) … Read more
Try: diff –brief –recursive dir1/ dir2/ Or alternatively, with the short flags -qr: diff -qr dir1/ dir2/ If you also want to see differences for files that may not exist in either directory: diff –brief –recursive –new-file dir1/ dir2/ # with long options diff -qrN dir1/ dir2/ # with short flag aliases
The command is date To customise the output there are a myriad of options available, see date –help for a list. For example, date ‘+%A %W %Y %X’ gives Tuesday 34 2013 08:04:22 which is the name of the day of the week, the week number, the year and the time.
Here are a couple different methods… A) Use docker exec (easiest) Docker version 1.3 or newer supports the command exec that behave similar to nsenter. This command can run new process in already running container (container must have PID 1 process running already). You can run /bin/bash to explore container state: docker exec -t -i … Read more
Use readlink: readlink -f file.txt
Recent versions of GNU Grep (>= 2.5.2) provide: –exclude-dir=dir which excludes directories matching the pattern dir from recursive directory searches. So you can do: grep -R –exclude-dir=node_modules ‘some pattern’ /path/to/search For a bit more information regarding syntax and usage see The GNU man page for File and Directory Selection A related StackOverflow answer Use grep … Read more
This should work: find DIR_NAME -type f | wc -l Explanation: -type f to include only files. | (and not ¦) redirects find command’s standard output to wc command’s standard input. wc (short for word count) counts newlines, words and bytes on its input (docs). -l to count just newlines. Notes: Replace DIR_NAME with . … Read more