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Top Forums Shell Programming and Scripting awk script to call another script based on second column entry Post 302966112 by my_Perl on Monday 8th of February 2016 09:11:24 AM
Old 02-08-2016
awk script to call another script based on second column entry

Hi

I have a text file (Input.txt) with two column entries separated by tab as given below:


Code:
aaa  str1
bbb  str2
cccccc  str3
dddd  str4
eee  str3
ssss  str2
sdf  str3
hhh  str1
fff  str2
ccc  str3
.....
.....
.....

My problem is, I want to write an awk script (say FirstScript) which will call another script (say SecondScript)which will return a string if a match of "str3" is found in the second column. After matching, the string returned by the second script will be written in the third column separated by a tab. If no match is found, the string from the first column will be copied to the corresponding row in the third column.

The desired output OUTPUT.TXT :

Code:
aaa  str1  aaa
bbb  str2  bbb
cccccc  str3   xxx
dddd  str4  dddd
eee  str3  yyy
ssss  str2  ssss
sdf  str3  zzz
hhh  str1  hhh
fff  str2  fff
ccc  str3   xyz
.....
.....
.....

In the output file, OUTPUT.TXT

cccccc str3 xxx
eee str3 yyy
sdf str3 zzz
ccc str3 xyz

Here the input to the SecondScript are cccccc, eee, sdf and ccc respectively for each row. xxx, yyy, zzz and xyz are returned by the SecondScript.



Please help me.



Thanks in advance.Smilie

Last edited by my_Perl; 02-08-2016 at 12:45 PM.. Reason: Editing
 

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TEXT2PS(L)																TEXT2PS(L)

NAME
text2ps - convert text files to PostScript SYNOPSIS
text2ps [ options ] [ files ] DESCRIPTION
Text2ps reads the input files (standard input if none are specified) and produces PostScript code which, when fed to a PostScript printer, will print the files. With text2ps it is possible to select any font, point size and number of columns. Options and files can be inter- mixed on the command line. Options are effective for all following files until they are overridden. Options Here follows a list of options that text2ps recognizes. Most numeric arguments are significant to one decimal place. Options are evalu- ated from left to right. Later options override earlier ones. -# n Print n copies of each page. (Default 1.) -c n Print in n columns. (Default 1.) -f font Print using font font. (Default Courier.) -p n Print with point size n. (Default 9.) -v n Use a vertical spacing of n points. If the vertical spacing is set to 0, the spacing will be 1.2 times the point size. (Default 0.) -l n Print n lines per column. When the line count is 0, print as many lines as will fit. (Default 0.) -r [p|l] Set the orientation to either portrait mode (p) or landscape mode (l). (Default p.) -b [+|-] Set page break mode. An argument + will force new files to be always printed on a new page (this is the default). After - new files will be put on the same page if there are still empty columns and the number of columns, the orientation or the number of copies didn't change. New files always start new columns. (Default -.) -mt n The top margin is n points. (Default 63.) -mb n The bottom margin is n points. (Default 63.) -ml n The left margin is n points. (Default 59.) -mr n The right margin is n points. (Default 59.) -mg n The inter-column gap is n points. (Default 25.) -t [+|-] If the argument is + the name of the file being printed will be printed on each page. If the argument is - the file name will not be printed. -t + implies -b +. -T text Print text as title on each page. This implies -t - and -b +. This option can be switched off by specifying -t - or -t +. (Default no title.) -F font Set the title font to font. (Default Helvetica.) -P n Set the title point size to n. (Default 12.) -B n Draw borders around each page. The number n specifies how to draw borders. N can have any of the following values or-ed in: 1 Draw a line along the left of the page. 2 Draw a line along the bottom of the page. 4 Draw a line along the right of the page. 8 Draw a line along the top of the page. 16 Draw a line between columns. This line does not connect to the lines along the top or bottom. 32 Draw a connecting line between the line between columns and the line along the top. 64 Draw a connecting line between the line between columns and the line along the bottom. When n is 0, no border lines are drawn. (Default no bordering lines.) -w n Tab stops are set every n spaces. Set the width of the TAB character. (Default 8.) -1 Sets up options to print in one column in portrait mode with the Courier font, so that you get 66 lines on a page. Equivalent to specifying the options -c 1 -f Courier -p 9 -v 0 -r p -l 0 -mt 63 -mb 63 -ml 59 -mr 59. This is the default. -2 Sets up options to print in two columns in landscape mode with the Courier font, so that you get two 66-line columns on a page. Equivalent to specifying the options -c 2 -f Courier -p 6 -v 0 -r l -l 0 -mt 63 -mb 63 -ml 59 -mr 59 -mg 25. Together with the -1 option, this is probably the most useful option. The name - means standard input. BUGS
Too many options. There is no way to specify where the title will be placed. If the font being used is not a constant width font and there are other characters than just tabs and spaces in front of a tab, the next character may not align properly. TEXT2PS(L)
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