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Top Forums Shell Programming and Scripting Read .txt file and dropping lines starting with # Post 302570043 by bghosh on Wednesday 2nd of November 2011 09:57:35 AM
Old 11-02-2011
code to delete lines starting with any special characters or blank lines

Hi,

Thanks for the quick reply.
As posted earlier,
I need to delete all the blanks lines and any line staring with a special character such as # or , or _
 

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stanza(4)						     Kernel Interfaces Manual							 stanza(4)

NAME
stanza - Stanza file format SYNOPSIS
stanza DESCRIPTION
A stanza file format is used in conjunction with the libAF(3) stanza file library. The stanza file syntax rules are as follows: Separate entries by one or more blank lines. A colon (:) terminates a entry name. A newline terminates an attribute name and value pair. Separate a attribute name and attribute value with an equal sign (=). Separate more than one attribute value with a comma (,). Entry names and attribute names can contain any printable character, except whitespace, a newline, or special characters, unless specified appropriately. Entry attribute values can contain any printable character, except a newline or spe- cial characters, unless specified appropriately. Trailing blanks or tabs are allowed at the beginning or end of lines. A number sign (#) at the beginning of a line indicates a comment. Comments should be included only at the beginning or the end of an entry. The syntax for a stanza file entry is as follows: entry_name: Attribute1_name = Attribute1_value Attribute2_name = Attribute2_value Attribute3_name = Attribute3_value1, Attribute3_value2 . . . The entry_name variable specifies the entry name. The attributes for the entry are specified with the Attribute1_name, Attribute2_name, and Attribute3_name variables. The values for the attributes are specified with the Attribute1_value, Attribute2_value, Attribute3_value1, and Attribute3_value2 variables. Several special quoting characters allow attribute values to contain special values and data representations. If you specify a quoting character, surround the attribute value with quotes. For example, to specify an octal value use the slash character: 07 RELATED INFORMATION
Commands: sysconfigdb(8), cfgmgr(8) Functions: libAF(3) Files: /etc/sysconfigtab(4) delim off stanza(4)
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