I get sometimes requests from customers to invalidate the cache for a particular webpage only. From inside the server the PURGE request is allowed so: curl –insecure -I -H "Host:www.racoonlab.com" -X PURGE http://localhost/whatever/whatever/whatever/ Another option is to use telnet: Since telnet commands are not meant…
echo | openssl s_client -connect maven.escenic.com:443 2>/dev/null | openssl x509 -noout -dates
If you need to get the default max heap size used by your machine: java -XX:+PrintFlagsFinal -version 2>&1 | grep MaxHeapSize
:%s/<Ctrl-V><Ctrl-M>/\r/g Where means type Ctrl+V then Ctrl+M. Explanation :%s substitute, % = all lines <Ctrl-V><Ctrl-M> ^M characters (the Ctrl-V is a Vim way of writing the Ctrl ^ character) /\r/ with new line (\r) g And do it globally (not just the first occurrence on…
grep -Fxvf file1 file2 Where -F, –fixed-strings Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched. -x, –line-regexp Select only those matches that exactly match the whole line. -v, –invert-match Invert the sense of matching, to…
If you are debugging big txt files, i.e. 6G+, a good start is to check what is at the top and at the end of it. export file=/Users/racoonlab/Downloads/engine.out; head -n 1000 $file >/tmp/extract; echo … skipping … >> /tmp/extract; tail -n 1000 $file >> /tmp/extract
dos2unix -n oldfile.txt newfile.txt or if the error is within a script: sed -i -e 's/\r$//' your-script.sh Executing a shell script, might end with /bin/bash^M: bad interpreter: No such file or directory The ^M is a carriage return character. Linux uses the line feed character…
The command: grep -Fxvf file1 file2 -F, –fixed-strings Interpret PATTERN as a list of fixed strings, separated by newlines, any of which is to be matched. -x, –line-regexp Select only those matches that exactly match the whole line. -v, –invert-match Invert the sense of matching,…