strace - Mitprotokollieren aller Systemaufrufe

Aufrufesyntax

 1 $ strace
 2 usage: strace [-dffhiqrtttTvVxx] [-a column] [-e expr] ... [-o file]
 3               [-p pid] ... [-s strsize] [-u username] [-E var=val] ...
 4               [command [arg ...]]
 5    or: strace -c [-e expr] ... [-O overhead] [-S sortby] [-E var=val] ...
 6               [command [arg ...]]
 7 -c -- count time, calls, and errors for each syscall and report summary
 8 -f -- follow forks, -ff -- with output into separate files
 9 -F -- attempt to follow vforks, -h -- print help message
10 -i -- print instruction pointer at time of syscall
11 -q -- suppress messages about attaching, detaching, etc.
12 -r -- print relative timestamp, -t -- absolute timestamp, -tt -- with usecs
13 -T -- print time spent in each syscall, -V -- print version
14 -v -- verbose mode: print unabbreviated argv, stat, termio[s], etc. args
15 -x -- print non-ascii strings in hex, -xx -- print all strings in hex
16 -a column -- alignment COLUMN for printing syscall results (default 40)
17 -e expr -- a qualifying expression: option=[!]all or option=[!]val1[,val2]...
18    options: trace, abbrev, verbose, raw, signal, read, or write
19 -o file -- send trace output to FILE instead of stderr
20 -O overhead -- set overhead for tracing syscalls to OVERHEAD usecs
21 -p pid -- trace process with process id PID, may be repeated
22 -s strsize -- limit length of print strings to STRSIZE chars (default 32)
23 -S sortby -- sort syscall counts by: time, calls, name, nothing (default time)
24 -u username -- run command as username handling setuid and/or setgid
25 -E var=val -- put var=val in the environment for command
26 -E var -- remove var from the environment for command
27 $