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Full Discussion: does head create new file
Top Forums UNIX for Advanced & Expert Users does head create new file Post 302353275 by chittisri on Tuesday 15th of September 2009 03:56:44 AM
Old 09-15-2009
does head create new file

hi,

Here my doubt is can we create a file using head/tail command in unix.

for example: my file consists 2000 lines , i want to cut it into 2. does this work please give correct command line.

head -1000 abc.txt > acd.txt
tail -1000 abc.txt > bdc.txt

hi,

Here my doubt is can we create a file using head/tail command in unix.

for example: my file consists 2000 lines , i want to cut it into 2. does this work please give correct command line.

head -1000 abc.txt > acd.txt
tail -1000 abc.txt > bdc.txt

Last edited by vbe; 09-15-2009 at 05:23 AM.. Reason: "threadjacking"
 

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X2SYS_MERGE(1gmt)					       Generic Mapping Tools						 X2SYS_MERGE(1gmt)

NAME
x2sys_merge - Merge an updated COEs tables SYNOPSIS
x2sys_merge -Amain_COElist.d -Mnew_COElist.d DESCRIPTION
x2sys_merge will read two crossovers data base and output the contents of the main one updated with the COEs in the second one. The second file should only contain updated COEs relatively to the first one. That is, it MUST NOT contain any new two tracks intersections (This point is NOT checked in the code). This program is useful when, for any good reason like file editing NAV correction or whatever, one had to recompute only the COEs between the edited files and the rest of the database. -A Specify the file main_COElist.d with the main crossover error data base. -M Specify the file new_COElist.d with the newly computed crossover error data base. OPTIONS
No space between the option flag and the associated arguments. EXAMPLES To update the main COE_data.txt with the new COEs estimations saved in the smaller COE_fresh.txt, try x2sys_merge -ACOE_data.txt -MCOE_fresh.txt > COE_updated.txt SEE ALSO
x2sys_binlist(1), x2sys_cross(1), x2sys_datalist(1), x2sys_get(1), x2sys_init(1), x2sys_list(1), x2sys_put(1), x2sys_report(1) GMT 4.5.7 15 Jul 2011 X2SYS_MERGE(1gmt)
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