Category: unix

ps -fA|grep postgres PS(1) User Commands PS(1) NAME ps – report a snapshot of the current processes. SYNOPSIS ps [options] DESCRIPTION ps displays information about a selection of the active processes. If you want a repetitive update of the selection and the displayed information, use top(1) instead. This version of ps accepts several kinds of…

Tail Examples tail -f postgres.log|grep “exec” | awk ‘{print $1,$16,$7}’ Tail Examples tail -f /var/log/postgresql.log | egrep “errors” tail –help Usage: tail [OPTION]… [FILE]… Print the last 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With no FILE, or when FILE…

Files Open by Process ls -l /proc/PROCID/fd Count Files Open by Process lsof -p PROCID|wc -l #alternative ls -l /proc/PROCID/fd| wc -l lsof -h lsof 4.86 latest revision: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/ latest FAQ: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/FAQ latest man page: ftp://lsof.itap.purdue.edu/pub/tools/unix/lsof/lsof_man usage: [-?abhKlnNoOPRtUvVX] [+|-c c] [+|-d s] [+D D] [+|-f[gG]] [+|-e s] [-F [f]] [-g [s]] [-i [i]] [+|-L [l]]…

KILL kill -KILL 9573 > man kill KILL(1) User Commands KILL(1) NAME kill – send a signal to a process SYNOPSIS kill [options] […] DESCRIPTION The default signal for kill is TERM. Use -l or -L to list available signals. Particularly useful signals include HUP, INT, KILL, STOP, CONT, and 0. Alternate signals may be…

# files containing “import” in subdirectories grep -rHn “import” * # files containing “import” or “except” grep -rHnE “import|except” * # only .py files containing “import” or “except” grep –color –include=”*.py” -rHnE “import|except” * # python files, text files and java files grep –color –include=”*[py|txt|java]” -rHnE “^import [a-z,\s]+$” * # same as above with extended…

Compress Files using bzip bzip2 archivefile1.txt Folder Compression The “.bz2” file extension is commonly used by the compression program bzip2, which is the counter part of bunzip2. You can use the “-r” option to recursively compress all the files under the specified directory. For example: tar cvf – foldername | bzip2 > foldername.tar.bz2 Keeping the…

Find Files containing solr # python files, text files and java files grep –color –include=”*[py|txt|java]” -rHnE “^import [a-z,\s]+$” * # same as above with extended find . -regextype posix-extended -iregex “.*.py|.*.txt|.*.txt” -exec grep –color -rHnE “import|except” ‘{}’ \; -print #find . -name “*.py” -exec grep –color -rHnE “import|except” ‘{}’ \; -print Find Files containing solr…