How to show only next line after the matched one?
you can try with awk: awk ‘/blah/{getline; print}’ logfile
grep
Grep regex NOT containing a string
grep matches, grep -v does the inverse. If you need to “match A but not B” you usually use pipes: grep “${PATT}” file | grep -v “${NOTPATT}”
Match two strings in one line with grep
You can use grep ‘string1’ filename | grep ‘string2’ Or grep ‘string1.*string2\|string2.*string1’ filename
Regex (grep) for multi-line search needed [duplicate]
Without the need to install the grep variant pcregrep, you can do a multiline search with grep. $ grep -Pzo “(?s)^(\s*)\N*main.*?{.*?^\1}” *.c Explanation: -P activate perl-regexp for grep (a powerful extension of regular expressions) -z Treat the input as a set of lines, each terminated by a zero byte (the ASCII NUL character) instead of … Read more
grep without showing path/file:line
No need to find. If you are just looking for a pattern within a specific directory, this should suffice: grep -hn FOO /your/path/*.bar Where -h is the parameter to hide the filename, as from man grep: -h, –no-filename Suppress the prefixing of file names on output. This is the default when there is only one … Read more
How to search contents of multiple pdf files?
There is pdfgrep, which does exactly what its name suggests. pdfgrep -R ‘a pattern to search recursively from path’ /some/path I’ve used it for simple searches and it worked fine. (There are packages in Debian, Ubuntu and Fedora.) Since version 1.3.0 pdfgrep supports recursive search. This version is available in Ubuntu since Ubuntu 12.10 (Quantal).
Exploitable PHP functions
To build this list I used 2 sources. A Study In Scarlet and RATS. I have also added some of my own to the mix and people on this thread have helped out. Edit: After posting this list I contacted the founder of RIPS and as of now this tools searches PHP code for the … Read more
How can I have grep not print out ‘No such file or directory’ errors?
You can use the -s or –no-messages flag to suppress errors. -s, –no-messages suppress error messages grep pattern * -s -R -n
How to get the process ID to kill a nohup process?
When using nohup and you put the task in the background, the background operator (&) will give you the PID at the command prompt. If your plan is to manually manage the process, you can save that PID and use it later to kill the process if needed, via kill PID or kill -9 PID … Read more
What is makeinfo, and how do I get it?
In (at least) Ubuntu when using bash, it tells you what package you need to install if you type in a command and its not found in your path. My terminal says you need to install ‘texinfo’ package. sudo apt-get install texinfo