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Is there a way to grep on the output of print command in gdb? In my case, I am debugging a core dump using gdb and the object I am debugging contains hell lots of elements. I am finding it difficult to look for a matching attribute i.e:
(gdb) print *this | grep <attribute>
Thanks.
431
The usual way to examine data in your program is with the print command (abbreviated p ), or its synonym inspect . It evaluates and prints the value of an expression of the language your program is written in (see section Using GDB with Different Languages).
By default, GDB output will go to both the terminal and the logfile. Set redirect if you want output to go only to the log file. By default, GDB debug output will go to both the terminal and the logfile. Set debugredirect if you want debug output to go only to the log file.
The ptype [ARG] command will print the type. Show activity on this post. This question may be related: vtable in polymorphic class of C++ using gdb: (gdb) help set print object Set printing of object's derived type based on vtable info.
To exit GDB, use the quit command (abbreviated q ), or type an end-of-file character (usually C-d ). If you do not supply expression , GDB will terminate normally; otherwise it will terminate using the result of expression as the error code.
You can use pipe command
>>> pipe maintenance info sections | grep .text
[15] 0x5555555551c0->0x5555555554d5 at 0x000011c0: .text ...
>>> pipe maintenance info sections | grep .text | wc
1 10 100
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