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Top Forums Shell Programming and Scripting Sending output of program into subsequent commands (i.e. awk/sort) Post 303036411 by sand1234 on Tuesday 25th of June 2019 05:15:24 AM
Old 06-25-2019
RudiC,
This works perfectly:

Code:
$ docker image ls | awk 'NR==1 {print; next} {print | "sort -Vrk5"}'
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
linode/lamp         latest              2359fa12fded        4 years ago         372MB
centos              latest              9f38484d220f        3 months ago        202MB
ubuntu              xenial              13c9f1285025        6 days ago          119MB
ubuntu              latest              4c108a37151f        6 days ago          64.2MB
alpine              latest              4d90542f0623        5 days ago          5.58MB

Is there any way to use command chaining like I used previously for this example? i.e. multiple redirections.
Quote:
cat <(head -n1 test.txt) <(awk '/C/' test.txt)
 

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PMDATE(1)						      General Commands Manual							 PMDATE(1)

NAME
pmdate - display an offset date SYNOPSIS
pmdate [ offset ... ] format DESCRIPTION
pmdate displays the current date and/or time, with an optional offset. An offset is specified with a leading sign (``+'' or ``-''), followed by an integer value, followed by one of the following ``scale'' spec- ifiers; S seconds M minutes H hours d days m months y years The output format follows the same rules as for date(1) and strftime(3). For example, the following will display the date a week ago as DDMMYYYY; pmdate -7d %d%m%Y PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). SEE ALSO
date(1), strftime(3), pcp.conf(5) and pcp.env(5). Performance Co-Pilot PCP PMDATE(1)
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