What is the correct format for a single command that would combine portions of 2 different lines in the command history? I'm using a C shell. Here's a simplified command history to clarify:
4 rm file1
5 ls -ld file2 file3 file4
6 cat file 5
With the above history, what would be the... (5 Replies)
I would like to change the lines:
originalline1
originalline2
to:
originalline1new
originalline1newline
originalline2new
originalline2newline
To do this, id like to combine the commands:
sed 's/^/&new/g' file > newfile1
and
sed '/^/ a\\
newline\\
\\ (2 Replies)
Hello all,
I am trying to list and count all the files of a particular type in any given directory. I can use the commands separately but when I combine them they do not give an output.
The command for counting the files is ls -1 | wc -l and for listing all the file of particular type say... (2 Replies)
Is there anyway to achieve "find /home -name "*.bashrc" 2>/dev/null" and "PS1="\n>"" in the same command? I just wanna add a line to the previous command to change the PS1 variable to ">". (1 Reply)
hey can anyone tell me how can i combine these two commands so that it is executed only once, but gives me both the results.
IDLE=`sar 30 6 | grep Average | awk '{print $1 $5}' `
sar 30 120 | awk '{print $1" "$5}' >> mailx -m -s "$MSG" xyz@abc.com. (5 Replies)
Hi,
I have a directory with some XML files in it. I can use wildcards to get the list of XMLs I want
say I have following XMLs in same dir
Employee1.xml
Employee2.xml
Employee3.xml
and
Salary1.xml
Salary2.xml
Salary3.xml
apart from other .txt .dat files etc
I want to write a unix... (7 Replies)
I have a directory of 3000 files without extensions (Solaris 5.10).
I would like to iterate the file names through the 'file' command and output their mime types (most are pdf or jpg, but a very few might be psd or swf which show simply as 'data')
So, I would like the output of the 'ls'... (2 Replies)
Hi,
I am pretty new to the unix community and have encountered a problem that I am trying to solve. I have 2 files one of which is called passwd file that looks like the following
Sample Output
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
... (1 Reply)
Hello all,
I need to send an attachment and text in the body, both in the same Email.
Below are two cammand that send the required data in separate Emails. I need to combine them so that I get just 1 Email containing the attachment & text in the body.
uuencode ${filename} "${file_}" |... (6 Replies)
Discussion started by: Junaid Subhani
6 Replies
LEARN ABOUT DEBIAN
page_util_peg
page_util_peg(3tcl) Parser generator tools page_util_peg(3tcl)__________________________________________________________________________________________________________________________________________________NAME
page_util_peg - page PEG transformation utilities
SYNOPSIS
package require page::util::peg ?0.1?
package require snit
::page::util::peg::symbolNodeOf tree node
::page::util::peg::symbolOf tree node
::page::util::peg::updateUndefinedDueRemoval tree
::page::util::peg::flatten treequery tree
::page::util::peg::getWarnings tree
::page::util::peg::printWarnings msg
::page::util::peg::peOf tree eroot
::page::util::peg::printTclExpr pe
_________________________________________________________________DESCRIPTION
This package provides a few common operations to PEG transformations. They assume a Normalized PE Grammar Tree as input, see the package
page::util::norm::peg, possibly augmented with attributes coming from transformations not in conflict with the base definition.
API
::page::util::peg::symbolNodeOf tree node
Given an arbitrary expression node in the AST tree it determines the node (itself or an ancestor) containing the name of the nonter-
minal symbol the node belongs to, and returns its id. The result is either the root of the tree (for the start expression), or a
definition node.
::page::util::peg::symbolOf tree node
As ::page::util::peg::symbolNodeOf, but returns the symbol name instead of the node.
::page::util::peg::updateUndefinedDueRemoval tree
The removal of nodes in the AST tree can cause symbols to lose one or more users.
A used by B and C,
B is reachable,
C is not,
so A now loses the node in the expression for C calling it,
or rather, not calling it anymore.
This command updates the cross-references and which nonterminals are now undefined.
::page::util::peg::flatten treequery tree
This commands flattens nested sequence and choice operators in the AST tree, re-using the treeql object treequery to run the query
determining which nodes to cut.
::page::util::peg::getWarnings tree
This command looks at the attributes of the AST tree for problems with the grammar and issues warnings. They do not prevent us from
writing the grammar, but still represent problems with it the user should be made aware of.
The result of the command is a dictionary mapping nonterminal names to their associated warnings.
::page::util::peg::printWarnings msg
The argument of the command is a dictionary mapping nonterminal names to their associated warnings, as generated by, for example,
the command ::page::util::peg::getWarnings.
The warnings contained therein are formatted and then printed via the log command page_info. This means that this command can be
used only from within a plugin managed by the package page::pluginmgr.
::page::util::peg::peOf tree eroot
This command converts the parsing expression starting at the node eroot in the AST tree into a nested list. The exact syntax of this
list specified by the package grammar::peg.
::page::util::peg::printTclExpr pe
This command converts the parsing expression contained in the nested list pe into a Tcl string which can be placed into a Tcl
script. See the package grammar::peg for the exact syntax of pe.
BUGS, IDEAS, FEEDBACK
This document, will undoubtedly contain bugs and other problems. Please report such in the category page of the Tcllib SF Trackers
[http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have.
KEYWORDS
PEG, page, parser generator, parsing expression grammar, text processing, transformation
CATEGORY
Page Parser Generator
COPYRIGHT
Copyright (c) 2007 Andreas Kupries <andreas_kupries@users.sourceforge.net>
page 1.0 page_util_peg(3tcl)