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Top Forums Shell Programming and Scripting How to get only the first line of output? Post 302092346 by sanchopansa on Monday 9th of October 2006 04:11:08 AM
Old 10-09-2006
head -1 seems to cut all of the output lines.
Here is what I have as output:

dhcpcd #corresponds to first output
sshd #correspond to sencond output
psi #corresponds to third output
psi #third output
rdesktop #forth output

As you see there are cases when
Code:
lsof -i < ports.list

lists one process and cases when it lists two. I want when it lists two or more to take only the first one (i.e. the first line of output for this case ).
 

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lifls(1)						      General Commands Manual							  lifls(1)

NAME
lifls - list contents of a LIF directory SYNOPSIS
name DESCRIPTION
lists the contents of a LIF directory on standard output. The default output format lists file names in multiple columns (similar to ls(1), except unsorted) if standard output is a character special file. If standard output is not a tty device, the output format is one file name per line. name is a path name to an HP-UX file containing a LIF volume and optional file name. If name is a volume name, the entire volume is listed. If name is of the form only the file is listed. The following options are available, and only one option should be specified with a given command: List in long format, giving volume name, volume size, directory start, directory size, file type, file size, file start, "implementation" field (in hex), date created, last vol- ume, and volume number. Force multiple column output format regardless of standard output type. Return the content of the "last volume flag" in decimal. Return the content of the "implementation" field in hex. Return the content of the "volume number" in decimal. Report only on files using block numbers specified on the command line in blist, a comma separated list of block numbers in DEV_BSIZE units. DIAGNOSTICS
returns zero if the directory was listed successfully. Otherwise it prints a diagnostic and returns nonzero. EXAMPLES
AUTHOR
was developed by HP. SEE ALSO
lifcp(1), lifinit(1), lifrename(1), lifrm(1), lif(4). lifls(1)
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