Well, the message you're getting is printed on stderr (as opposed to stdout, which is where normal output goes). If you want to just get rid of that stream, this is the easiest way.
Many times it can be useful to ignore all output and just check the return value of command to see whether it exited normally or not:
Redirection &> will redirect both stdout and stderr.
You can specify where does this message go, by manipulating the stderr stream. Stderr is associated by a file descriptor 2 (/dev/fd/2 in bash).
Other than redirecting it to /dev/null, you could redirect it to a file, to capture the stderr, like
or '2>>' to append.
I have to read a file line by line, change it and then update the file. Problem is, when i read the file, "read" command ignores leading spaces.
The file is a script which is indented in many places for clarity. How to i make "read" command read leading spaces as well. (3 Replies)
I'm searching for an oracle emtab file.
I do a find / -name emtab -print and the first result gives me
find: stat() error /apps/tomcat/jakarta-tomcat-5.5.9/bin/console.txt: I/O error
Can someone explain what this error means?
thanks, (2 Replies)
im a new student in programming and im stuck on this question so please please HELP ME. thanks.
the question is this:
enter a command to delete all files that have filenames starting with labtest, except labtest itself (delete all files startign with 'labtest' followed by one or more... (2 Replies)
Hi All,
I am getting an error message when I execute command “zlogin -C sunsrv4z5” on my root server.
INIT: Cannot stat /etc/inittab, errno: 2
INIT: Cannot stat /etc/inittab, errno: 2
As per my analysis it seems that some files inside /etc folder are deleted.
This server was... (14 Replies)
Hi guys,
Hope u r doing find. I have this query. When we check the manual pages for a certain command, say man cat
we see the manual page with more
What is UNIX really doing here, I mean why not less command instead of more command. And can we have UNIX display the manual pages with less command... (2 Replies)
I have a bash script that has been running (on SUSE 9.3) dozens of times over the past couple of years without error. Recently it has been hitting intermittent “cp: cannot stat FILE: No such file or directory” errors.
The script has nested loops that continuously process files in a... (2 Replies)
i would like to know the equivalent of stat -c %Y <file> command in AIX.
i tried "istat" but its not giving the epoch time and also tried with perl
perl -le'printf "%o", 07777 & (stat) for @ARGV' <file>
it not also provding the timing .
... (3 Replies)
Hi.
I'm trying to install VMWare Workstation to run a virtual machine on my Mac OS, but running the bundle from bash(xterm)
sh VMware-workstation-Full-11.0.0-2305329.x86_64.bundle
(as suggested in install guide)
comes up with error:stat: illegal option -- -
usage: stat
Digging... (5 Replies)
Hi All,
I have 2 pipe delimited files viz., file_old and file_new. I'm trying to compare these 2 files, and extract all the different rows between them into a new_file.
comm -3 < sort file_old < sort file_new > new_file
I am getting the below error:
-ksh: sort: cannot open
But if I do... (7 Replies)
Discussion started by: njny
7 Replies
LEARN ABOUT FREEBSD
atf-check
ATF-CHECK(1) BSD General Commands Manual ATF-CHECK(1)NAME
atf-check -- executes a command and analyzes its results
SYNOPSIS
atf-check [-s qual:value] [-o action:arg ...] [-e action:arg ...] [-x] command
DESCRIPTION
atf-check executes a given command and analyzes its results, including exit code, stdout and stderr.
Test cases must use atf-sh(3)'s atf_check builtin function instead of calling this utility directly.
In the first synopsis form, atf-check will execute the provided command and apply checks specified by arguments. By default it will act as
if it was run with -s exit:0 -o empty -e empty. Multiple checks for the same output channel are allowed and, if specified, their results
will be combined as a logical and (meaning that the output must match all the provided checks).
In the second synopsis form, atf-check will print information about all supported options and their purpose.
The following options are available:
-s qual:value Analyzes termination status. Must be one of:
exit:<value> checks that the program exited cleanly and that its exit status is equal to value. The exit code can be omit-
ted altogether, in which case any clean exit is accepted.
ignore ignores the exit check.
signal:<value> checks that the program exited due to a signal and that the signal that terminated it is value. The signal
can be specified both as a number or as a name, or it can also be omitted altogether, in which case any signal
is accepted.
Most of these checkers can be prefixed by the 'not-' string, which effectively reverses the check.
-o action:arg Analyzes standard output. Must be one of:
empty checks that stdout is empty
ignore ignores stdout
file:<path> compares stdout with given file
inline:<value> compares stdout with inline value
match:<regexp> looks for a regular expression in stdout
save:<path> saves stdout to given file
Most of these checkers can be prefixed by the 'not-' string, which effectively reverses the check.
-e action:arg Analyzes standard error (syntax identical to above)
-x Executes command as a shell command line, executing it with the system shell defined by ATF_SHELL. You should avoid using
this flag if at all possible to prevent shell quoting issues.
EXIT STATUS
atf-check exits 0 on success, and other (unspecified) value on failure.
ENVIRONMENT
ATF_SHELL Path to the system shell to be used when the -x is given to run commands.
EXAMPLES
The following are sample invocations from within a test case. Note that we use the atf_check function provided by atf-sh(3) instead of exe-
cuting atf-check directly:
# Exit code 0, nothing on stdout/stderr
atf_check 'true'
# Typical usage if failure is expected
atf_check -s not-exit:0 'false'
# Checking stdout/stderr
echo foobar >expout
atf_check -o file:expout -e inline:"xx yy
"
'echo foobar ; printf "xx yy
" >&2'
# Checking for a crash
atf_check -s signal:sigsegv my_program
# Combined checks
atf_check -o match:foo -o not-match:bar echo foo baz
SEE ALSO atf-sh(1)BSD October 5, 2014 BSD