New Scripts
1 Print `ODD' if there are odd number of lines containing PAT in the datafile. 2008.06.23
Two Patterns
1 Get lines containing PAT1 AND PAT2 of a file. 2000.11.16
2 Get lines containing PAT1 OR PAT2 of a file. 2000.11.17
3 Get lines containing PAT1 but no PAT2 of a file. 2000.09.29
4 Insert a separating line after a line beginning with 'abc' and immediately followed by a line beginning with 'xyz'. 2005.07.29
5 Perform operations on lines starting from the fist line containing PAT1 till the last one containing PAT2. 2008.01.24
Two Consecutive Lines
1 Delete two consecutive lines if the first one contains PAT11, and the second one contains PAT2. 2007.12.31
2 Remove almost identical lines. 2008.01.21
Lines Containing PAT and their Neighbors.
1 Get every line containing PAT and the adjacent one preceding it. 2008.02.09
2 Get every line containing PAT and lines adjacent to it. 2001.02.15
3 Get lines containing PAT and 3 consecutive lines following each of them. 2000.11.15
4 Get every line which is adjacent to and precedes a line containing PAT. 2001.02.13
5 Get the line following a line containing PAT. 2004.02.17
6 Delete lines containing PAT and the 2 next lines following them. 2006.07.17
7 Extract 'Received:' headers from a mailbox. 2004.05.16
N-th Line Containing PAT
1 Get the N-th matched line. 2007.08.23
2 Get the N-th matched line.(another version) 2007.09.03
First Line Containing PAT
1 Get the FIRST line containing PAT 2000.09.29
2 Delete the FIRST line containing PAT of a file. 2000.09.29
3 Get lines starting from the FIRST one containing PAT till the end of file. 2000.10.18
4 Delete up to, but not including, the first line containing PAT. 2001.02.17
Last Line Containing PAT
1 Get the LAST line containing PAT of a file. 2000.10.04
2 Delete the LAST line containing PAT of a file. 2000.10.04
3 Get the lines from the last one containing PAT of a file. 2006.06.22
4 Get the lines after the last one containing PAT of a file. 2006.06.28
5 Delete the lines from the last line containing PAT till the end of file. 2006.07.19
6 Delete the lines till the last one containing PAT. 2007.09.05
7 Perform a specific operation on lines starting from the beginning of a file till the last line containing PAT. 2007.01.18
Append/Join Conditionally
1 If a line does not end with a dot ('.'), join every following line till one ending with a dot. 2001.02.26
2 A case study on joining lines. 2004.09.29
3 Join every three non-blank lines to one line, separate them by '|'s. 2004.02.12
4 Append a line to the previous one if it does not begin with some tag. 2006.09.13
Reformat a File
1 Split lines that are longer than 25 characters. 2001.06.22
2 Move lines containing some string to the end of a file. 2002.12.04
3 Fix newlines at wrong positions. 2004.03.04
4 Add a separator line to the end of every 'block'. 2002.10.04
5 Append a message after very 'block'. 2004.09.10
6 If a non-blank line is not followed by a blank line, append a <br> tag to the end of it. 2006.05.22
7 Show complete records only. 2007.06.12
Misc
1 Get the longest line of a file. 2000.10.11
2 Remove consecutive duplicate lines. 2008.02.21
3 Retrieve IPs and interface names from the output of /sbin/ifconfig. 2003.02.21
4 Comment out uncommented lines. 2004.02.27
5 Prepend the contents of some file before every matching line of a file. 2005.10.18
6 Print the last line of each group consisting of lines with the same tag. 2003.01.28
7 Replace every instance of 'KEY=....' of a file with the first one. 2004.06.08
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