09-24-2013
not sure why you want to use awk but you could simply use join.
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Hi all,
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...
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STEP 1
# Set variable
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Hello,
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Hi folks,
Happy new year.
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This really is a dummy question but I'm stuck and out of time... I have a large file and out of it I only want to pick out lines starting with either "Pressure" or "N". I still need these lines to be in their original order.
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Hi All,
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wqwert
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Good day,
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file2:
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LEARN ABOUT OPENSOLARIS
getgroups
getgroups(2) System Calls getgroups(2)
NAME
getgroups, setgroups - get or set supplementary group access list IDs
SYNOPSIS
#include <unistd.h>
int getgroups(int gidsetsize, gid_t *grouplist);
int setgroups(int ngroups, const gid_t *grouplist);
DESCRIPTION
The getgroups() function gets the current supplemental group access list of the calling process and stores the result in the array of group
IDs specified by grouplist. This array has gidsetsize entries and must be large enough to contain the entire list. This list cannot be
larger than NGROUPS_UMAX. If gidsetsize equals 0, getgroups() will return the number of groups to which the calling process belongs without
modifying the array pointed to by grouplist.
The setgroups() function sets the supplementary group access list of the calling process from the array of group IDs specified by grou-
plist. The number of entries is specified by ngroups and can not be greater than NGROUPS_MAX.
RETURN VALUES
Upon successful completion, getgroups() returns the number of supplementary group IDs set for the calling process and setgroups() returns
0. Otherwise, -1 is returned and errno is set to indicate the error.
ERRORS
The getgroups() and setgroups() functions will fail if:
EFAULT A referenced part of the array pointed to by grouplist is an illegal address.
The getgroups() function will fail if:
EINVAL The value of gidsetsize is non-zero and less than the number of supplementary group IDs set for the calling process.
The setgroups() function will fail if:
EINVAL The value of ngroups is greater than {NGROUPS_MAX}.
EPERM The {PRIV_PROC_SETID} privilege is not asserted in the effective set of the calling process.
USAGE
Use of the setgroups() function requires the {PRIV_PROC_SETID} privilege.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |getgroups() is Standard. |
+-----------------------------+-----------------------------+
|MT-Level |Async-Signal-Safe |
+-----------------------------+-----------------------------+
SEE ALSO
groups(1), chown(2), getuid(2), setuid(2), getgrnam(3C), initgroups(3C), attributes(5), privileges(5), standards(5)
SunOS 5.11 8 Sep 2006 getgroups(2)