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awk '/@<TRIPOS>BOND/ {getline;if ($0 ~ /@<TRIPOS>SUBSTRUCTURE/) {print FILENAME;exit}}' *.mol2


All it does is, checking for @<TRIPOS>SUBSTRUCTURE just after @<TRIPOS>BOND. If it...

Depending on your shell, you could do this also with Parameter Substitution (http://tldp.org/LDP/abs/html/parameter-substitution.html).
What have you tried so far?

Try for FILE in *; do echo mv $FILE ${FILE%%.*}; done
Should this exceed your LINE_MAX, try
ls * | while read FILE; do echo mv $FILE ${FILE%%.*}; done

Ah, but how do you know it's in column 6, not column 5?

Also, why bother assigning a variable? You can do it all in one statement with gsub(/:/,"",$6)

awk '{gsub(/:/,""); print $5$6}'

Provide the "-n1" option to xargs so that it processes just one file at a time...
grep 'string' | awk '{print $2$3}' | xargs -n1 -I {} cp {} /dir1/dir2/dir3
And where is grep's input coming from...

ON doing this grep 'string' | awk '{print $2$3}' it is returning the values like this.

make sure what are the 2nd and the 3rd fields and proceed!!

Hi.

You may be interested in combine:
combine - combine sets of lines from two files using boolean operations

SYNOPSIS
combine file1 and file2

combine file1 not file2...

When I thought you always wanted to work on three directories, I started working on the following script:
#!/bin/ksh
IAm="${0##*/}"
if [ $# -ne 3 ]
then printf "Usage: %s dir1 dir2 dir3\n"...

tr "/" "\t" translates all the forward slash / to horizontal tab \t

For further reference on tr command check the manual here (https://www.unix.com/man-page/linux/1/tr/)

Now, this solution does eliminate the / characters...

$ cat sample40.txt
1 ethanol
2 methanol
3 methanol/ethanol
4 ethanol/methanol
5 ethanol/DMF
6 ethyl...

Check your input file for non printable characters, especially at the beginning around the header line. You can use


od -c inputfile | head

for this.

See my output...
V12 V13 V14 V15 V16
100 200 300 NA 500
220 NA 100 500 600
700 NA 900 100 200

Try this:-
awk ' { if($2 ~ /^ *$/ ) print $1; } ' input_file > new_file

Try


find -name '*-1.mol' -exec mv {} /destination_path/ \;