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Full Discussion: Parse out specific lines
Top Forums Shell Programming and Scripting Parse out specific lines Post 302497245 by PointyWombat on Wednesday 16th of February 2011 04:30:17 PM
Old 02-16-2011
Parse out specific lines

Hello,

For the life of me, I can't figure out how to extract only certain lines of a file. For example, the file contains:

Code:
project.max-sem-ids
        privileged      1.02K       -   deny                                 -
        system          16.8M     max   deny                                 -
project.max-crypto-memory
        privileged      47.1GB      -   deny                                 -
        system          16.0EB    max   deny                                 -
project.max-tasks
        system          2.15G     max   deny                                 -
project.max-lwps
        system          2.15G     max   deny                                 -
project.cpu-cap
        system          4.29G     inf   deny                                 -
project.cpu-shares
        privileged          1       -   none                                 -
        system          65.5K     max   none                                 -
zone.max-swap
        system          16.0EB    max   deny                                 -
zone.max-locked-memory
        system          16.0EB    max   deny                                 -
zone.max-shm-memory
        system          16.0EB    max   deny                                 -
zone.max-shm-ids
        system          16.8M     max   deny                                 -
zone.max-sem-ids
        system          16.8M     max   deny                                 -

and say I only want to see the values for project.max-crypto-memory and project.max-lwps for example. How would I get the 1 or 2 lines which follow which are relevant to that value?

Any help appreciated.

Thanks,

PW
 

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fmt(1)								   User Commands							    fmt(1)

NAME
fmt - simple text formatters SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile...] DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for compatibility with nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which must begin with "From". Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used). fmt can also be used as an in-line text filter for vi(1). The vi command: !}fmt reformats the text between the cursor location and the end of the paragraph. OPTIONS
-c Crown margin mode. Preserve the indentation of the first two lines within a paragraph, and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. -s Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such formatted text, from being unduly combined. -w width | -width Fill output lines to up to width columns. OPERANDS
inputfile Input file. ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
nroff(1), vi(1), attributes(5), environ(5) NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases. SunOS 5.10 9 May 1997 fmt(1)
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