replace space with + and - as negative only

Shell Programming and Scripting
1

I have a file file1.dat with the following lines

22885068900000652 B86860003OLFXXX592123320081227
22885068900000652 B86860003ODL-Sp592123420081227
22885068900000652-B94030001ODL-Ch592123520081227
23666483030000653-B94030001ODL-Ch000000120081227
23797049900000654-E71060001OLFXXX000000220081227
23699281320000655 E71060002OLFXXX000000320081227

i want to get the output from the above file file1.dat what is the syntax for this.

22885068900000652+B86860003OLFXXX592123320081227
22885068900000652+B86860003ODL-Sp592123420081227
22885068900000652-B94030001ODL-Ch592123520081227
23666483030000653-B94030001ODL-Ch000000120081227
23797049900000654-E71060001OLFXXX000000220081227
23699281320000655+E71060002OLFXXX000000320081227

can someone help me on this.

2

run sed command

sed 's/ /+/g' file.dat

---------- Post updated at 08:50 AM ---------- Previous update was at 08:49 AM ----------

output:

user@net:~$ sed 's/ /+/g' file
22885068900000652+B86860003OLFXXX592123320081227
22885068900000652+B86860003ODL-Sp592123420081227
22885068900000652-B94030001ODL-Ch592123520081227
23666483030000653-B94030001ODL-Ch000000120081227
23797049900000654-E71060001OLFXXX000000220081227
23699281320000655+E71060002OLFXXX000000320081227
user@net:~$
3

right now i am using this way but i am getting only the 3 rows which replaces the space to + but then why i am not getting the existing negative rows in the file.dat file

grep ' ' $DATADIR/file.dat|sed s/\ /\+/g > $DATADIR/out_file.txt
 
22885068900000652+B86860003OLFXXX592123320081227
22885068900000652+B86860003ODL-Sp592123420081227
23699281320000655+E71060002OLFXXX000000320081227

I want the result with all the rows in the file.

22885068900000652+B86860003OLFXXX592123320081227
22885068900000652+B86860003ODL-Sp592123420081227
22885068900000652-B94030001ODL-Ch592123520081227
23666483030000653-B94030001ODL-Ch000000120081227
23797049900000654-E71060001OLFXXX000000220081227
23699281320000655+E71060002OLFXXX000000320081227
4

in my example

sed 's/ /+/g' file > $DATADIR/out_file.txt

the sed command will be replaced all blank characters in all of the rows not only in 3 rows!!
The negative lines will not changed in this case.
Therefore I'm not undertand your issue, the result is the same or I'm wrong?

cat $DATADIR/out_file.txt

22885068900000652+B86860003OLFXXX592123320081227
22885068900000652+B86860003ODL-Sp592123420081227
22885068900000652-B94030001ODL-Ch592123520081227
23666483030000653-B94030001ODL-Ch000000120081227
23797049900000654-E71060001OLFXXX000000220081227
23699281320000655+E71060002OLFXXX000000320081227