10-09-2001
Quote:
Originally posted by primal
why did you double cut?
name_t=`grep ^${1} /etc/passwd | cut -d: -f5 | cut -d, -f1`
The reason I did that, was that some of the GECOS fields in my test passwd file are comma delimited. If the User's name is the only information that field is simply -
:Full Name:
In the case that It contains phone number, office number, so on, it looks like this -
:Full Name, Room Number, Work Phone, Home Phone:
I wanted to make sure that if more than one part of the field existed, we only grab the full name.
oh and the 2>&1 is?
who | grep $1 >/dev/null 2>&1
Oops, forgot to explain that. "2" is the file desciptor for "stderr", which is the standard error output. "1" is the descriptor for stdout, standard output. Some times you need to do something with both of them, to keep any output from showing up on your screen. What 2>&1 does, is sends stderr into stdout, so it will follow wherever you're sending the output, whether it's into /dev/null, or into a log file.
I may not be too helpful in explaining it here, but in this case, you probably don't really need it in this case. It's just one of those things I do out of habit...
thanks! im gonna read some more.
-primal
Hey, any time!
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LEARN ABOUT MINIX
dpkg-checkbuilddeps
dpkg-checkbuilddeps(1) dpkg suite dpkg-checkbuilddeps(1)
NAME
dpkg-checkbuilddeps - check build dependencies and conflicts
SYNOPSIS
dpkg-checkbuilddeps [option...] [control-file]
DESCRIPTION
This program checks the installed packages in the system against the build dependencies and build conflicts listed in the control file. If
any are not met, it displays them and exits with a nonzero return code.
By default, debian/control is read, but an alternate control filename may be specified on the command line.
OPTIONS
--admindir=dir
Change the location of the dpkg database (since dpkg 1.14.0). The default location is /var/lib/dpkg.
-A Ignore Build-Depends-Arch and Build-Conflicts-Arch lines (since dpkg 1.16.4). Use when only arch-indep packages will be built, or
combine with -B when only a source package is to be built.
-B Ignore Build-Depends-Indep and Build-Conflicts-Indep lines. Use when only arch-dep packages will be built, or combine with -A when
only a source package is to be built.
-I Ignore built-in build depends and conflicts (since dpkg 1.18.2). These are implicit dependencies that are usually required on a
specific distribution, the so called Build-Essential package set.
-d build-depends-string
-c build-conflicts-string
Use the given build dependencies/conflicts instead of those contained in the debian/control file (since dpkg 1.14.17).
-a arch
Check build dependencies/conflicts assuming that the package described in the control file is to be built for the given host
architecture instead of the architecture of the current system (since dpkg 1.16.2).
-P profile[,...]
Check build dependencies/conflicts assuming that the package described in the control file is to be built for the given build
profile(s) (since dpkg 1.17.2). The argument is a comma-separated list of profile names.
-?, --help
Show the usage message and exit.
--version
Show the version and exit.
ENVIRONMENT
DEB_BUILD_PROFILES
If set, it will be used as the active build profile(s) for the package being built. It is a space separated list of profile names.
Overridden by the -P option.
1.19.0.5 2018-04-16 dpkg-checkbuilddeps(1)